Perhaps you should try some spelling variations:
integration social » international social
integration theory » integration through, information theory, innovation theory
price integration » service integration, trade integration, price indexation
agri integration » grid integration, der integration, iii integration
support agri » support grid, support aging, support a
import price » import prices, export price, export prices

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( support agri integration theory. ) or ( import price integration social. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support agri integration theory. ) OR ( import price integration social. )).
• Adding a wildcard symbol may retrieve word variants: (( support agri integration theory. ) or ( import price integration social. ))*.