Perhaps you should try some spelling variations:
information channels » information exchanges, informal channels, information centers
oral communication » personal communication
developing areas » developing asia, developing east, developing a
technologies 2 » technologies _, technologies 4
channels why » channels what, channels _, channels 4
areas arenas » areas trends, seas areas
why oral » why rural, why deal

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 information channels why oral communication costs _ developing areas arenas.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 information channels why oral communication costs _ developing areas arenas.*.