Perhaps you should try some spelling variations:
services investment » services government, services development
caries treatment » aids treatment, tariff treatment, cancer treatment
technologies et » technologies e, technologies art, technologies bit
et ressources » des ressources, les ressources, de ressources
humaines » humans

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((services investment) or (caries treatment)) technologies et ressources humaines ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((services investment) OR (caries treatment)) technologies et ressources humaines ;.
• Adding a wildcard symbol may retrieve word variants: ((services investment) or (caries treatment)) technologies et ressources humaines ;*.