Perhaps you should try some spelling variations:
communication modes » communication costs, communication media, communication methods
new transformation » next transformation, e transformation, led transformation
oral communication » mobile communication, _ communication, risk communication
development banks » development bank
technologies new » technologies _, technologies a
transformation a » transformation _, _ transformational, _ transformation

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies new transformation a e oral communication modes _ development banks afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies new transformation a e oral communication modes _ development banks afrique.*.