Perhaps you should try some spelling variations:
interaction series » interactions series, interaction studies, interaction terms
motivation theory » motivation der, innovation theory
host interaction » host interactions, robot interaction, about interaction
costs motivation » course motivation, crisis motivation, points motivation
supply host » supply cost, supply how, supply 21st

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( supply host interaction series. ) or ( supply costs motivation theory. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply host interaction series. ) OR ( supply costs motivation theory. )).
• Adding a wildcard symbol may retrieve word variants: (( supply host interaction series. ) or ( supply costs motivation theory. ))*.