Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
interview location » overview location, interview selection, interview situation
method interview » methods interviews, method overview, author interview
4.2 development » 3.2 development, 2.3 development, 1 development
development de » development d, development ds, developpement de
location aids » education aids, location width, location asia
trade mobile » trade motives, trade profile, trade models
aids trade » aid trade, trains trade, brands trade
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: method interview location aids trade mobile communications costs 4.2 development de afrique.*.