Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
internet services » internet service
how integration » new integration, how interaction, die integration
crowd internet » from internet, good internet
supply crowd » supply growth, supply cost, supply from

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

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