Perhaps you should try some spelling variations:
economics report » economies report, economy report, economics robert
economic report » economic reform, economic reforms, economic recovery
recherche land » recherche dans, recherche prend, recherches dans
recherche und » recherche en, recherche d'une, recherche prend
studie om » studie 2

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

• Performing a fuzzy search may retrieve terms with similar spellings: studie om ((recherche land) OR (recherche und)) ((economics report) or (economic report)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: studie om ((recherche land) OR (recherche und)) ((economics report) OR (economic report)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "studie om ((recherche land) OR (recherche und)) ((economics report) or (economic report)) ;*".