Perhaps you should try some spelling variations:
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
die developpement » de developpement, le developpement, du developpement
developpement en » developpement et, developpement des, developpement de
communication 2 » communication _, communication a, communication 3
inflation tax » inflation rate, inflation _, inflation target
technology 1 » technology _
1 inflation » 10 inflation, 12 inflation, _ inflation

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

• Adding a wildcard symbol may retrieve word variants: technology 1 inflation tax space 2.1 communication 2 die developpement en afrique.*.