Perhaps you should try some spelling variations:
communication models » communications models, communication model, communication modes
technologies case » technologies based, technologies can, technologies create
development urban » development bank, development band, development update
case information » care information, based information, phase information
urban africa » urban area
about de » about due, about dead, about debt
models 2 » models 1, models 3, models 4

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies case information about de _ communication models 2 development urban africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies case information about de _ communication models 2 development urban africa.*.