Perhaps you should try some spelling variations:
oral communication » personal communication
technologies iot » technologies ict, technologies icts, technologies art
communication pt » communication 3, communication 1, communication 2
la developpement » le developpement, de developpement, et developpement
developpement et » developpement des, developpement de, development east
iot information » ist information, cost information, plot information
et afrique » en afrique, l afrique
pt la » et la, pt a, pt l
2 do » _ do, 2 de, 1 do
2 co » _ co, a co, 2 c

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies iot information ((2 do) OR (2 co)) oral communication pt la developpement et afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies iot information ((2 do) OR (2 co)) oral communication pt la developpement et afrique.*.