Perhaps you should try some spelling variations:
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
technology 3.1.3 » technology 3.1.1, technology 2.1.3, technology 3.1.2
developpement il » developpement de, developpement et, developpement du
3.1.3 inflation » 3.3.3 inflation, 5.4.3 inflation, 3.1.2.2 inflation
a developpement » au developpement, de developpement, le developpement
inflation age » inflation rate, inflation a, inflation auf
il afrique » l afrique, en afrique
age race » wages race, age range, cane race
race 6.2 » grace 6.2, race 4.2, race 6.4
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1.3 inflation age race 6.2 communication costs a developpement il afrique.*.