Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
factor integration » facto integration, sector integration, actor interaction
integration series » integration services, interaction series, integration server
fare integration » trade integration, die integration
supply factor » supply factors, supply sector
supply fare » supply farm, supply case, supply figure

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

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