Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
inflation states » inflation rates, inflation taxes, inflation starts
developpement en » developpement et, developpement des, developpement de
technology 6 » technology _, technology 1, technology 3
states trade » states state, states three
6 inflation » _ inflation, 2 inflation, d inflation
trade 3.2 » trade 2.2, trade 2, trade 4.1

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

• Adding a wildcard symbol may retrieve word variants: technology 6 inflation states trade 3.2 communication costs _ developpement en afrique.*.