Perhaps you should try some spelling variations:
integration theories » integration theorems, integrationstheorie 2, integration theory
international social » international society, international sourcing, international seminar
ndc international » etc international, tec international, apec international
supporting ndc » supporting new, supporting dmdu, supporting each
support grid » support agri, support grant, support group

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

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