Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
user information » based information, poor information, customer information
technology user » technology users, technology use, technology uses
a development » _ development, clean development, asian development
development a » development _, development bank, development banks
flows de » flows do, flows debt, flows _
modes a » models a, modes _, model a

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology user information flows de _ communication modes a development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology user information flows de _ communication modes a development a afrique.*.