Perhaps you should try some spelling variations:
trade developpement » trade developement, trade development, de developpement
communication boom » communication room, communication body, communication blogs
formulacion who » formulacion de, formulation where
e communication » de communication, 1 communication, une communication
des afrique » en afrique, de l'afrique
boom trade » book trade, boost trade, from trade
who does » whom does, who goes, who loses
does e » does de, does _, does a

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

• Adding a wildcard symbol may retrieve word variants: technologies _ formulacion who does e communication boom trade developpement des afrique.*.