Perhaps you should try some spelling variations:
integration theory » integration through, information theory, innovation theory
shock innovations » back innovations, how innovations, social innovations
from integration » roma integration, from immigration, from international
innovations case » innovation case, innovations a, innovations asia
supply shock » supply shocks

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( support from integration theory. ) OR ( supply shock innovations case. ))~.
• Adding a wildcard symbol may retrieve word variants: (( support from integration theory. ) or ( supply shock innovations case. ))*.