Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
models development » model development, module development, model developments
ark information » bank information, pack information, lack information
technology ark » technology park, technology parks, technology a
information 13 » information 1.3, information 3, information 1
development li » development lid, development lie, development lin
cost models » cost model, logit models
li afrique » l afrique, en afrique
13 does » 10 does

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

• Adding a wildcard symbol may retrieve word variants: technology ark information 13 does _ communication cost models development li afrique.*.