Perhaps you should try some spelling variations:
cluster developments » cluster development, later developments, further developments
communication based » communication united, communication brazil, communication barriers
developments from » development from, developments after, developments _
et communication » et communicatione, get communication, debt communication
relations 1.3 » relations 10.3, relations 14.3, relations 6.3
based cluster » based clustering, based customer, based causes
1.3 crisis » 13.3 crisis, 1.1 crisis, 13 crisis
crisis et » crisis el, crisis en, crisis eu

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

• Adding a wildcard symbol may retrieve word variants: technology _ relations 1.3 crisis et communication based cluster developments from a.*.