Perhaps you should try some spelling variations:
technologies trade » technology trade, technologies case, technologies table
oral communication » personal communication
trade information » price information, private information, trade integration
information rank » information bank, information banks, information risk
communication pt » communication 3, communication 1, communication 2
de developpement » sme development
des afrique » en afrique, de l'afrique
one oral » one moral, one rural, one oil
pt de » et de, pt d, pt e

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

• Adding a wildcard symbol may retrieve word variants: technologies trade information rank one oral communication pt de developpement des afrique.*.