Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
interaction term » interaction _
12 communication » 1 communication, 10 communication, 13 communication
developpement du » developpement de, developpement des, developpement et
3.2 interaction » 3.2 introduction, face interaction
technology 3.2 » technology 2.2, technology 3.1, technology 2
term leader » team leader, team leaders, every leader
costs leur » costs clear
du afrique » en afrique, l afrique, de l'afrique
leader 12 » leader _, leader a, leader 6

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

• Adding a wildcard symbol may retrieve word variants: technology 3.2 interaction term leader 12 communication costs leur developpement du afrique.*.