Perhaps you should try some spelling variations:
les developpement » le developpement, des developpements, leur developpement
6.2 communication » 3.2 communication, 2.3 communication, 2.7 communication
developpement de » developpement des, developpement durable
technology high » technology rights, technology how, technology help
inflation taxes » inflation rates, inflation tax, inflation targets
communication 2 » communication _, communication a, communication 3
taxes spaces » places spaces, papers spaces, spaces spaces
spaces 6.2 » spaces 4.2, spaces 1.1, spaces 2.1
de afrique » de l'afrique, en afrique, l afrique

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

• Adding a wildcard symbol may retrieve word variants: technology high inflation taxes spaces 6.2 communication 2 les developpement de afrique.*.