Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
city communication » society communication, daily communication, data communication
formulation do » formulation de, formulation du, formulation des
l2 development » 2 development, 32 development, 12 development
development li » development lid, development lie, development lin
barriers l2 » barriers 2, barriers 3.2, barriers law
li afrique » l afrique, en afrique
does city » does cat
do does » do dogs, der does, who does

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

• Adding a wildcard symbol may retrieve word variants: technologies _ formulation do does city communication barriers l2 development li afrique.*.