Perhaps you should try some spelling variations:
communication cote » communication costs, communication costa, communication case
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
interaction term » interaction _
la developpement » le developpement, de developpement, et developpement
3.1 interaction » 3.2 interaction, 3 interaction, 2 interaction
developpement l » developpement il, developpement la, developpement de
technology 3.1 » technology 1, technology 2.2, technology _
trade 4.1 » trade 2.2, trade 3.2
l afrique » en afrique
cote la » contre la, compte la, cote les

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 interaction term trade 4.1 communication cote la developpement l afrique.*.