Perhaps you should try some spelling variations:
communication power » communications power, communication pour, communication paper
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
transfer design » transfers design, transport design, transfer esipt
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
design models » design model
models scale » model scale, models stable, models shape
scale 2.1 » scale 4.1, scale 2.6, scale 3.1
l afrique » en afrique
power a » power _

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

• Adding a wildcard symbol may retrieve word variants: technology transfer design models scale 2.1 communication power a developpement l afrique.*.