Perhaps you should try some spelling variations:
communication methods » communication media, communication model
3.1 development » 2 development
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
methods 3.1 » methods 2.1
a afrique » l afrique, en afrique
about de » about due, about dead, about debt

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 about de _ communication methods 3.1 development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information about de _ communication methods 3.1 development a afrique.*.