Perhaps you should try some spelling variations:
innovation machine » innovation managing, innovations china
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
technology cost » technology case, technology can, technology choice
cost innovation » costs innovation, foster innovation, cost information
machine circles » touching circles
circles 3.5 » circles 3.1, circles 13.4, circle 3.3
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology cost innovation machine circles 3.5 communication costs a development _ african.*.