Perhaps you should try some spelling variations:
business conservation » business cooperation, business convention, business operation
integration efforts » international efforts
duty integration » data integration, south integration, deep integration
import business » airport business, port business, importing business
import duty » import duties

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( import duty integration efforts. ) or ( import business conservation efforts. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( import duty integration efforts. ) OR ( import business conservation efforts. )).
• Adding a wildcard symbol may retrieve word variants: (( import duty integration efforts. ) or ( import business conservation efforts. ))*.