Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
technologies 2.1 » technologies _, technologies 4, technologies a
2.1 interaction » 3.1 interaction, 3.2 interaction, 2 interaction
between bone » between bond, between lone, between money
4 developing » 3 developing
developing a » developing _
bone verbal » non verbal
costs 4 » costs _, costs a, costs 4.2
a areas » 1 areas, 2 areas, 4 areas

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

• Adding a wildcard symbol may retrieve word variants: technologies 2.1 interaction between bone verbal communication costs 4 developing a areas.*.