Perhaps you should try some spelling variations:
interaction studies » intervention studies, international studies, interactions series
motivation theory » motivation der, innovation theory
cost interaction » host interaction, host interactions, robot interaction
rise motivation » die motivation, case motivation, role motivation
supply cost » supply costs
supply rise » supply risk, supply case, supply role

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

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