Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
technologies chief » technologies new, technologies annex, technologies could
caps communication » mass communication, mass communications, data communication
information gap » information _, information flow
development a » development _, development bank, development banks
ice caps » price caps

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies chief information gap ice caps communication modes _ development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies chief information gap ice caps communication modes _ development a afrique.*.