Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
integrated services » internet services
toward integrated » towards integrated, towards integration
report toward » report towards, support toward, report card
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 theories. ) or ( report toward integrated services. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support grid integration theories. ) OR ( report toward integrated services. )).
• Adding a wildcard symbol may retrieve word variants: (( support grid integration theories. ) or ( report toward integrated services. ))*.