Perhaps you should try some spelling variations:
communication models » communication modes, communication mode, communication mediums
change information » trade information, chief information
technology change » technological change, technological changes
information et » information act, information _, information need
a development » _ development, clean development, asian development
development a » development _, development bank, development banks
models a » models _, model a, model _
et does » der does

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 et does mobile communication models a development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology change information et does mobile communication models a development a afrique.*.