Perhaps you should try some spelling variations:
communication from » communication 3, communication 1, communication 3.3
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
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 4.1 » space 4.1, spaces 1.1, spaces 2.1

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 4.1 communication from dem developpement des afrique.*.