Perhaps you should try some spelling variations:
communication models » communications models, communication model, communication modes
change information » chandos information, trade information
technology change » technological change, technological changes
information act » information age, information a, information about
does mobile » das mobile
a afrique » l afrique, en afrique
models a » models 1, models 3

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology change information act does mobile communication models a development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology change information act does mobile communication models a development a afrique.*.