Perhaps you should try some spelling variations:
personal communication » interpersonal communication
technologies private » technologies create, technology private, technologies drivers
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
new personal » der personal, how personal, de personal
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 private information _ new personal communication a de developpement en afrique.*.