Perhaps you should try some spelling variations:
2.2 communication » 2.3 communication, 3.2 communication, 2.7 communication
developpement et » developpement des, developpement de, development east
inflation rates » inflation rate
4 developpement » de developpement, le developpement, et developpement
technology 2.2 » technology _, technology 1, technology 3
2.2 inflation » 2.3 inflation, 3.2 inflation, 2.2.4 inflation
rates trade » states trade, rules trade, wages trade
et afrique » en afrique, l afrique
trade 2.2 » trade 3.2, trade 4.1
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 2.2 inflation rates trade 2.2 communication costs 4 developpement et afrique.*.