Perhaps you should try some spelling variations:
2.3 communication » 3.2 communication, de communication, 4 communication
technology grade » technology trade, technology guides, technology gender
le developpement » de developpement, sme development
developpement en » developpement et, developpement des, developpement de
grade inflation » price inflation, trade information
index choice » mode choice, need choice, code choice
choice 2.3 » choice 2.1, choice 2.2, choice 2.4
costs le » costs _, costs 4, costs a

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

• Adding a wildcard symbol may retrieve word variants: technology grade inflation index choice 2.3 communication costs le developpement en afrique.*.