Perhaps you should try some spelling variations:
integration series » integration services, interaction series, integration server
process motivation » process estimation, process innovation, process automation
motivation theory » motivation der, innovation theory
support process » support project, import process, support price
support grid » support agri, support grant, support group

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

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