Perhaps you should try some spelling variations:
verbal communication » nonverbal communication, virtual communication, oral communication
technologies a » technologies _, technologies 4, technologies 2
2.3 developing » 3.3 developing, 2.2 developing, 1.3 developing
a information » 2 information, 1 information
contents knew » contents new, contents key, contents index
developing 1 » developing _, developing a, developing e
costs 2.3 » costs 4.2, costs 4.4

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

• Adding a wildcard symbol may retrieve word variants: technologies a information contents knew verbal communication costs 2.3 developing 1 africa.*.