Perhaps you should try some spelling variations:
2.7 communication » 2.3 communication, 3.2 communication, 2 communication
technology rate » technology state, technology role, technology related
inflation rates » inflation rate
rate inflation » grade inflation, wage inflation, age inflation
a developing » a development
developing l » developing l2, developing _, developing a
l afrique » en afrique
have 2.7 » have 5.3, have 9.1
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 rate inflation rates have 2.7 communication costs a developing l afrique.*.