Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
models development » model development, module development, model developments
3.5 communication » 3.2 communication, 3 communication, 2.3 communication
technology tools » technology thesis
tools inflation » does inflation, taxes inflation, tools evaluation
inflation rates » inflation rate
development l » development li, development 1, development law
cost models » cost model, logit models
space 3.5 » space 13.5, spaces 3.5, space 3.2
l afrique » en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology tools inflation rates space 3.5 communication cost models development l afrique.*.