Perhaps you should try some spelling variations:
integration some » integration south, integration soziale, integration social
res integration » dis integration, 1.2 integration, process integration
do existing » co existing, _ existing, 3 existing
2 existing » _ existing, 3 existing, pre existing
import res » import rates, import rules, import prices

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply ((do existing) OR (2 existing)) services. ) or ( import res integration some. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply ((do existing) OR (2 existing)) services. ) OR ( import res integration some. ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( supply ((do existing) OR (2 existing)) services. ) or ( import res integration some. ))*".