Perhaps you should try some spelling variations:
aided communication » aided communications, video communication, called communication
communication die » communication de, communication des, communication do
technology debts » technology debate, technology data, technology dlt
debts relations » des relations, les relations, its relations
relations 2.1 » relations 3.1, relations 1, relations _
crisis aided » crisis avoided, crisis aged, crisis after
2.1 crisis » 3.1 crisis, 2010 crisis, 2011 crisis
die social » die sociale, die socialen, time social

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

• Adding a wildcard symbol may retrieve word variants: technology debts relations 2.1 crisis aided communication die social development _ artic.*.