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
developpement la » developpement de, developpement et, developpement du
trade inflation » grade inflation, trade insulation, rate inflation
inflation wage » inflation rate, inflation target, inflation rates
wage rules » wage rates, ge rules, rate rules
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 inflation wage rules 3.2 communication a leur developpement la afrique.*.