Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
internet services » internet service
rfid integration » grid integration, und integration, unified integration
wto internet » from internet, good internet, _ internet
supply rfid » supply crowd
supply wto » supply water

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

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