Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
models development » model development, module development, model developments
5.4 communication » de communication, data communication
gaps information » als information, gets information, laws information
development east » development southeast, development 1
technology gaps » technology gap
information b » information 2, information 1, information bank
costa models » cost models, cost model, copula models
east afrique » east africa, east african, en afrique
false 5.4 » case 5.4
b false » _ false, a false, 2 false

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

• Adding a wildcard symbol may retrieve word variants: technology gaps information b false 5.4 communication costa models development east afrique.*.