Perhaps you should try some spelling variations:
integration efforts » international efforts, conservation efforts
data sanitation » water sanitation, total sanitation, safe sanitation
eu integration » _ integration, deep integration, data integration
supply data » supply water
supply eu » supply _, supply a

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply data sanitation (services. OR series.) ) or ( supply eu integration efforts. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply data sanitation (services. OR series.) ) OR ( supply eu integration efforts. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply data sanitation (services. OR series.) ) or ( supply eu integration efforts. ))".
• Adding a wildcard symbol may retrieve word variants: (( supply data sanitation (services. OR series.) ) or ( supply eu integration efforts. ))*.