Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
leur developpement » le developpement, deux developpements, de developpement
formation across » information across, variation across, variations across
developpement de » developpement des, developpement durable
1 communication » 10 communication, 3 communication, 4 communication
barriers leur » barriers learn, barriers law, barriers been
across rice » across nine, across africa, across crises
de afrique » de l'afrique, en afrique, l afrique
rice 1 » rice 10, rice _, rice 4

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

• Adding a wildcard symbol may retrieve word variants: technology _ formation across rice 1 communication barriers leur developpement de afrique.*.