He says he had a difficult time finding enough lambs to do the job.

VOA: special.2009.07.14

Ms.Skloot had a difficult time gaining the trust of the Lacks family.

VOA: special.2010.07.21

After her trip, she had a difficult time forgetting.

VOA: special.2009.05.10

The Democratic Party had a much more difficult time choosing a candidate for president in eighteen sixty-eight.

VOA: special.2010.02.11

America's third party at that time -- The People's Party -- had a difficult decision to make.

VOA: special.2010.07.01