Perhaps you should try some spelling variations:
integration theory » integration through, information theory, innovation theory
shock innovations » back innovations, how innovations, social innovations
innovations house » innovation house, innovations volume, innovations case
support trade » support trainer, export trade, import trade
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 trade integration theory. ) OR ( supply shock innovations house. ))~.
• Adding a wildcard symbol may retrieve word variants: (( support trade integration theory. ) or ( supply shock innovations house. ))*.