Perhaps you should try some spelling variations:
oral communication » personal communication
dam developpement » de developpement, du developpement, au developpement
communication pt » communication 3, communication 1, communication 2
developpement en » developpement et, developpement des, developpement de
rheologie die » theologie die, rheologie des, archaologie die
die variation » de variation, does variation, der variation
variation 13 » variation 3, variation 8.13, variation 3.3
figures oral » figures draw, figures a, figures from
13 figures » 1 figures, 11 figures, 13 figure

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

• Adding a wildcard symbol may retrieve word variants: rheologie die variation 13 figures oral communication pt dam developpement en afrique.*.