Perhaps you should try some spelling variations:
oral communication » personal communication
technologies 1 » technologies _, technologies 4, technologies 2
developing a » developing _
1 informal » _ informal, 3 informal, 8 informal
channels 4 » channels _, channel _
4 oral » _ oral, 2 oral
a area » a areas, 1 area, 3 area

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 1 informal channels 4 oral communication costs _ developing a area.~.
• Adding a wildcard symbol may retrieve word variants: technologies 1 informal channels 4 oral communication costs _ developing a area.*.