Perhaps you should try some spelling variations:
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
technology 3.3.3 » technology 3.1.3, technology 3.3.1, technology 3.3.4
developpement de » developpement des, developpement durable
3.3.3 inflation » 2.3.1 inflation, 5.33 inflation, 5.4.3 inflation
a developpement » au developpement, de developpement, le developpement
inflation a » inflation _, inflation tax, inflation rate
de afrique » de l'afrique, en afrique, l afrique
race 4.1 » race 4.10, rice 4.1, race 4.2
costs a » costs _, costs 4
a race » _ race

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

• Adding a wildcard symbol may retrieve word variants: technology 3.3.3 inflation a race 4.1 communication costs a developpement de afrique.*.