Perhaps you should try some spelling variations:
close developpement » le developpement, de developpement, case development
3.2 communication » 3 communication, 2.3 communication, de communication
technology trade » technology trends, technology transfer, technology transfers
developpement de » developpement des, developpement durable
trade inflation » grade inflation, trade insulation, rate inflation
inflation bayes » inflation rates, inflation taxes, inflation boys
rule 3.2 » rules 3.2, rule 2.2, rule 3.1
a close » a closer, a closed, _ close

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

• Adding a wildcard symbol may retrieve word variants: technology trade inflation bayes rule 3.2 communication a close developpement de l'afrique.*.