Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
technologies trade » technologies create, technology trade, technologies reduce
trade information » price information, private information, credit information
per developpement » de developpement, power development, spur development
information need » information needs, information based, information age
developpement co » development co, development _, development a
costs per » cost per

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies trade information need edge _ communication costs per developpement co afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies trade information need edge _ communication costs per developpement co afrique.*.