Perhaps you should try some spelling variations:
5.3 communication » 2.3 communication, 4.3 communication, 1.3 communication
inflation rates » inflation rate
technology use » technology 1, technology 2.2, technology 3
use inflation » push inflation, und inflation, die inflation
developing l2 » developing _, developing a, developing e
4 developing » 3 developing
l2 afrique » l afrique, en afrique
have 5.3 » leave 5.3, have 9.1

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

• Adding a wildcard symbol may retrieve word variants: technology use inflation rates have 5.3 communication _ 4 developing l2 afrique.*.