Perhaps you should try some spelling variations:
datos communication » data communication, actors communication, mass communication
communication model » communication media
technologies chief » technologies case, technologies chapter, technologies cookies
trade development » software development
model trade » modern trade, model traem, model tree
a afrique » l afrique, en afrique

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies chief information _ de datos communication model trade development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies chief information _ de datos communication model trade development a afrique.*.