Perhaps you should try some spelling variations:
3.4.1 communication » 3.4.2 communication, 3.4.4 communication, 9.4.1 communication
developpement la » developpement de, developpement et, developpement du
inflation gross » inflation across, inflation process, information gross
4 developpement » de developpement, le developpement, et developpement
technology 10 » technology 110, technology 1, technology 11
10 inflation » 12 inflation, 10.7 inflation, _ inflation
krieg 3.4.1 » krieg 2.4.5, krieg 4.1, krieg 2.3.1.1
la afrique » l afrique, la fabrique, en afrique
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology 10 inflation gross krieg 3.4.1 communication costs 4 developpement la afrique.*.