Perhaps you should try some spelling variations:
integration theories » integration theory, integration through, integration efforts
agri integration » grid integration, fare integration, care integration
support agri » support grid, support a
supply land » supply demand, supply lines
land basic » land based
services. » series.

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