Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
planning services » banking services
grid integration » trade integration, _ integration, data integration
dam planning » tax planning, a planning, term planning
supply grid » supply crowd, support grid
supply dam » supply data, supply farm, supply a

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 integration theories. ) or ( supply dam planning services. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( supply grid integration theories. ) OR ( supply dam planning services. )).
• Adding a wildcard symbol may retrieve word variants: (( supply grid integration theories. ) or ( supply dam planning services. ))*.