Perhaps you should try some spelling variations:
communication cost » communication costs, communications costs, communication mode
trade information » price information, private information, credit information
technology trade » technology transfer, technology change, technology transfers
some development » sme development, site development, code development
information et » information act, information _, information need
development co » development _, development a, development case

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

• Adding a wildcard symbol may retrieve word variants: technology trade information et de _ communication cost some development co afrique.*.