Perhaps you should try some spelling variations:
2.3.1.1 communication » 2.2.5.4 communication, 3.4.1 communication, 6.2.4.1 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
krieg 2.3.1.1 » krieg 2.3.1.2, kriege 2.3.1.3, primer 2.3.1.1
10 inflation » 12 inflation, 10.7 inflation, _ inflation
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 2.3.1.1 communication costs 4 developpement la afrique.*.