The phrase "troubles to understand" is grammatically correct and can be used in written English.
It means to have difficulty or struggle to comprehend or grasp something. Example: He had troubles to understand the complex mathematical concept, but after studying it for hours, he finally understood it.
According to Moser and Dunning ([1986]), the high level of protest bids reveals that some questions could be misunderstood; the respondents have troubles to understand the study scenario or are not convinced that the proposed project becomes real.
With regards to content one of the forward translators had troubles to understand the meaning of the predetermined different answers and scorings to question 8 ("If you have no pain while undertaking Achilles tendon loading sports, for how long can you train/practise?"): If someone would have no sport related Achilles tendon pain, (s)he will be able to train as long as (s)he likes.
But far too few take the trouble to understand what that is.
"It is important we take the trouble to understand" Afghan society.
If we took the trouble to understand the past, we might stop building our lives on top of sinkholes.
"Perhaps, if Senator Obama would take the time and trouble to understand this issue he would learn to debate an honest disagreement respectfully.
By that very logic, of course, they do not belong to a European who has not taken the trouble to understand and absorb them.
If we take the trouble to understand that rationality, we might have a better chance of figuring out what its adherents will do next and preventing it.
Intent on deluging head teachers with every gimmicky initiative ever dreamed up by his officials, Mr Clarke had not taken the trouble to understand the funding formula under which money was channelled to schools.
Quite a few were hostile in a knee-jerk sort of way simply because they had not taken the trouble to understand exactly what the government was trying to do and why it was important.
As we will show, firms that take the trouble to understand the institutional differences between countries are likely to choose the best markets to enter, select optimal strategies, and make the most out of operating in emerging markets.
