Perhaps you should try some spelling variations:
transformation tls » transformation als, transformation tools, transformation aus
oral communication » personal communication
4 developing » 3 developing
developing 3 » developing _, developing a, developing e
model oral » modern oral, novel oral
tls model » itls model, ols model, als modell
3 trends » 2 trends
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 _ transformation tls model oral communication costs 4 developing 3 trends.*.