Perhaps you should try some spelling variations:
class history » crises history
paris history » prices history, banks history
sports great » torts great, aspects great, sports arena
dust sports » dust storms, des sports
great paris » great plains
studies der » studie der, studien der, studies das
der class » per class, order class, under class

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( dust sports great paris history ) or ( case studies der class history ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( dust sports great paris history ) OR ( case studies der class history ))*.