Perhaps you should try some spelling variations:
sign communication » open communication, human communication, 3 communication
technologies some » technologies soil, technologies stage, technologies ser
some interaction » time interaction, more interaction, node interaction
developpement en » developpement et, developpement des, developpement de
interaction wer » interaction term, interactions power, interaction terms
a developpement » au developpement, de developpement, le developpement
wer many » der mann, wer kann, why many
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies some interaction wer many sign communication costs a developpement en afrique.*.