Perhaps you should try some spelling variations:
communication cost » communication costs, communications costs, communication mode
mine development » sme development, asian development, trade development
gap information » can information, care information, bank information
technology gap » technology park, technology _, technology ict
development a » development _, development bank, development banks
de mobile » does mobile, _ mobile, a mobile
cost mine » cost time

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

• Adding a wildcard symbol may retrieve word variants: technology gap information _ de mobile communication cost mine development a afrique.*.