Perhaps you should try some spelling variations:
model communications » modern communications, border communications, aided communications
communications costs » communication costs, communications _
developpement de » developpement des, developpement durable
4 developpement » de developpement, le developpement, et developpement
inflation tax » inflation rate, inflation _, inflation target
technology 3 » technology _, technology 1, technology 4
3 inflation » _ inflation, 2 inflation, 6 inflation
space model » space models
de afrique » de l'afrique, en afrique, l 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 3 inflation tax space model communications costs 4 developpement de afrique.*.