Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
information wages » information age, information wants, information war
3.2 communication » 3 communication, 2.3 communication, de communication
del developpement » de developpement, des developpements, le developpement
aids information » chandos information, series information
developpement et » developpement des, developpement de, development east
technology aids » technology a, technology age, technology asia
wages case » ages case, wages close, cases case
et afrique » en afrique, l afrique
costa del » costo del, costa e, cose del
case 3.2 » case 4.2, case 3.1, case 5.2

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

• Adding a wildcard symbol may retrieve word variants: technology aids information wages case 3.2 communication costa del developpement et afrique.*.