Perhaps you should try some spelling variations:
operational challenges » practical challenges, organizational challenges
integration soziale » integration social
agri operational » aids operational, tigers operational, basin operational
rfid integration » grid integration, und integration, unified integration
support agri » support grid, support aging, support a
supply rfid » supply crowd

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 agri operational challenges. ) OR ( supply rfid integration soziale. ))~.
• Adding a wildcard symbol may retrieve word variants: (( support agri operational challenges. ) or ( supply rfid integration soziale. ))*.