Perhaps you should try some spelling variations:
deux developpement » deux developpements, de developpement, du developpement
3.2 communication » 3 communication, 2.3 communication, de communication
technology grade » technology trade, technology guides, technology gender
grade inflation » price inflation, trade information
des afrique » en afrique, de l'afrique
rate file » case file, rate fee, rate firm
file 3.2 » cile 3.2, file 32, file 3.2.3

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

• Adding a wildcard symbol may retrieve word variants: technology grade inflation rate file 3.2 communication a deux developpement des afrique.*.