Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
planning services » banking services
drug planning » drugs planning, dam planning, dose planning
supply crowd » supply growth, supply cost, supply from
supply grid » supply great, support grid

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((supply grid) OR (supply crowd)) integration theories. ) or ( supply drug planning services. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((supply grid) OR (supply crowd)) integration theories. ) OR ( supply drug planning services. )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((supply grid) OR (supply crowd)) integration theories. ) or ( supply drug planning services. ))".
• Adding a wildcard symbol may retrieve word variants: (( ((supply grid) OR (supply crowd)) integration theories. ) or ( supply drug planning services. ))*.