Perhaps you should try some spelling variations:
1.1 communication » 4.1 communication, 1.3 communication, 1.4 communication
communication 3.3 » communication _, communication a, communication 1
dem developpement » de developpement, des developpements, le developpement
technology lag » technology law, technology land, technology lays
inflation safe » inflation rate, inflation rates, inflation taxes
lag inflation » log inflation, wage inflation, low inflation
des afrique » en afrique, de l'afrique
spaces 1.1 » spaces 2.1
3.3 dem » 3.3 der, 2.3 dem, 3.3 de

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

• Adding a wildcard symbol may retrieve word variants: technology lag inflation safe spaces 1.1 communication 3.3 dem developpement des afrique.*.