Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
3.2 communication » 3 communication, 2.3 communication, de communication
technology trade » technology trends, technology transfer, technology transfers
trade insulation » trade regulation, grade inflation, trade innovation
insulation rates » inflation rates, inflation rate, insertion rates
developpement la » developpement de, developpement et, developpement du
rates rules » rate rules, gats rules, rates rates
la afrique » l afrique, la fabrique, en afrique
rules 3.2 » rules 4.2, rules 4.3

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

• Adding a wildcard symbol may retrieve word variants: technology trade insulation rates rules 3.2 communication a leur developpement la afrique.*.