Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
2.3 communication » 3.2 communication, de communication, 4 communication
technology trade » technology trends, technology transfer, technology transfers
developpement du » developpement de, developpement des, developpement et
trade inflation » grade inflation, trade insulation, rate inflation
inflation rates » inflation rate
rates rules » rate rules, gats rules, rates rates
du afrique » en afrique, l afrique, de l'afrique
rules 2.3 » rules 4.3, rules 2.2, rules 2.4

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

• Adding a wildcard symbol may retrieve word variants: technology trade inflation rates rules 2.3 communication a leur developpement du afrique.*.