Perhaps you should try some spelling variations:
transformations 13 » transformations 1, transformations 3, transformations 10
language cognition » language acquisition
cognition costs » cognition cross, cognition casc, cognition goals
4 developing » 3 developing
developing e » developing _, developing a, developing east
d language » 3 language, 1 language, 2 language
costs 4 » costs _, costs a, costs 4.2
e areal » _ areal, 2 areal, 4 areal
13 d » 13 3d, 13 do, 13 _

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

• Adding a wildcard symbol may retrieve word variants: technologies _ transformations 13 d language cognition costs 4 developing e areal.*.