Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
4.1 communications » 4.1 communication, 3.1 communications, 4.1 communicating
inflation states » inflation rates, inflation taxes, inflation starts
developpement en » developpement et, developpement des, developpement de
technology 1 » technology _
1 inflation » 10 inflation, 12 inflation, _ inflation
case 4.1 » case 4.2, case 1

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

• Adding a wildcard symbol may retrieve word variants: technology 1 inflation states case 4.1 communications costs _ developpement en afrique.*.