In short, it is hard to find an exact cause for the rebound in home prices.
Still, it is hard to find anyone that is overweight Brazil as an investment.
It is hard to find fault with the argument that many big banks have become ungovernable.
It is hard to find an explanation for price movements that applies across markets.
With more young people going to university, it is hard to find suitable candidates for apprenticeships.
Such has been the change in attitudes, it is hard to find unabashed progressives these days.
Many of the region's industrial and building firms complain that it is hard to find competent welders.
It is hard to find things to fill that amount of bandwidth but early tests suggest it is working.
BBC: When will UK rural areas get fast-speed fibre internet?
But it is hard to find much enthusiasm for Mr Bouteflika's third term.
Across industry, the same lament is heard: it is hard to find qualified people, and hard to retain them.
One cruel irony is that, in a city pocked with abandoned properties, it is hard to find land for development.
In a fractious political climate, it is hard to find a topic that both sides of the aisle agree on.
"It is hard to find anyone in a 20mph area who wants it put back to 30mph, " she told the conference.
BBC: Lib Dem conference: Call for more 20mph speed limit zones
And it is hard to find sectors his empire doesn't own: telecommunications, banking, restaurants, construction, drilling, airlines, the list goes on.
True, it is hard to find a single instance in the Johnson oeuvre in which the author favours a bigger state.
ECONOMIST: Boris Johnson is equipped with a reality-distortion field
In practice, it is hard to find buyers in this bracket who do not have lots of equity in their homes.
But it is hard to find anybody, even in the armed forces, who thinks that they can ever be more than trailblazers.
It is hard to find a cheaper event to produce than a wrestling match, which requires no equipment beyond a foam mat.
Mostly, says Dan Mudd, its vice president for Asia-Pacific, because it is hard to find deals that deliver on the theoretical promise.
Apart from the cleaning lady, it is hard to find an adult without a degree (or two or three) in super-zip households.
It is hard to find sources of sustainable growth in emerging economies.
When you have a problem with your credit card issuer, it is hard to find someone who can help, or sometimes, even listen.
It is hard to find an oil and gas company involved in both exploration and production that is doing as lousy as Petrobras.
And it is hard to find a serious economist who doesn't believe that the strategy is to kick the can down the road.
Apart from anything else, it is hard to find anyone who would knock Jain's track record through the global banking crisis and beyond.
It is hard to find bad champagne, given how tightly regulated the grape and wine production is in a region famous for quality grapes.
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Since Liechtenstein is so secretive it is hard to find if people really are activating such clauses and leaving, but they are surely getting worried.
But it is hard to find any outside analyst who believes this, not least because Portugal's biggest export market, Spain, has problems of its own.
It is hard to find any economist who supports rent restraints.
Yet given the reputation of English courts, and long-standing rules in other countries about recognition of their judgments, it is hard to find a legal counter-attack.
ECONOMIST: Rich people and bad laws mean tough times for free speech
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