Perhaps you should try some spelling variations:
communication ghosts » communication costs, communications costs, communication costa
humans development » human development, humanist development, human developments
en communication » open communication, lean communication, when communication
technology les » technology led, technology lays, technology lead
les relations » rules regulations
ghosts humans » gross human
relations 11 » relations 1.1, relations 1, relations 14
11 crisis » 19 crisis, 1 crisis, 3 crisis
crisis en » crisis el, crisis eu, crisis _

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

• Adding a wildcard symbol may retrieve word variants: technology les relations 11 crisis en communication ghosts humans development _ artic.*.