Perhaps you should try some spelling variations:
child interactions » machine interactions, chemical interactions
iraq communication » iraq communications, iran communications, direct communication
techniques child » techniques check, techniques aims, techniques avoid
au developpement » du developpement, de developpement, le developpement
interactions b » interactions _, interactions 4, interactions a
des afrique » en afrique, de l'afrique
costs au » costs a, costs amy, costs _
b datos » 1 datos, a datos, c datos

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

• Adding a wildcard symbol may retrieve word variants: techniques child interactions b datos iraq communication costs au developpement des afrique.*.