Perhaps you should try some spelling variations:
communication methods » communication media, communication model
technologies chief » technologies case, technologies chapter, technologies cookies
task communication » risk communication, risk communications, tasks communicative
information need » information needs, information needed, information speed
need nets » bed nets
nets task » its task, nets risk, set task
methods a » methods 1

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 need nets task communication methods a development _ africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies chief information need nets task communication methods a development _ africa.*.