Perhaps you should try some spelling variations:
oral communication » personal communication
technologies pt » technologies _, technologies 4, technologies 2
pt information » ct information, plot information, get information
contents level » contexts level, contexts levels, content levels
developing can » developing a, developing ai, developing av
4 developing » 3 developing
level oral » novel oral, level overall
can africa » urban africa
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies pt information contents level oral communication costs 4 developing can africa.*.