Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
development aid » development a, development africa, development agenda
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
flows de » flows do, flows debt, flows bei
modes a » models a, modes _, modes 3

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

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