Perhaps you should try some spelling variations:
interaction series » interactions series, interaction studies, interaction terms
integration some » integration south, integration soziale, integration social
a interaction » ai interaction, 2 interaction, 3 interaction
support statt » support start, support state, support stage
support a » support _

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( support a interaction series. ) OR ( ((support statt) OR (support staff)) integration some. ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( support a interaction series. ) or ( ((support statt) OR (support staff)) integration some. ))~".
• Adding a wildcard symbol may retrieve word variants: (( support a interaction series. ) or ( ((support statt) OR (support staff)) integration some. ))*.