Perhaps you should try some spelling variations:
information survey » information sources, information source, information super
communication mode » communication modes, communication media, communication methods
development can » development bank, development band, development case
technologies a » technologies _
a information » _ information, land information, award information
survey does » survey models, survey costs

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 survey does mobile communication mode _ development can afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information survey does mobile communication mode _ development can afrique.*.