Perhaps you should try some spelling variations:
technologies authors » technologies methods, technologies cohort, technology author
authors preparation » methods preparation, network preparation, antibody preparation
preparation phase » preparation stage, preparation cycle, preparation a
de developpement » sme development
a communication » la communication, data communication, data communications
des afrique » en afrique, de l'afrique
der a » der _, der e
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies authors preparation phase der a communication a de developpement des afrique.*.