Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
calculations area » calculations based, calculations from, calculations prof
development model » development models, development middle
some development » sme development, women development, site development
technologies de » technologies _, technologies 4, technologies 2
de calculations » mde calculations, dft calculations, _ calculations
e communication » de communication, 1 communication, une communication

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

• Adding a wildcard symbol may retrieve word variants: technologies de calculations area _ e communication cost some development model afrique.*.