Perhaps you should try some spelling variations:
centers development » center development, centered development, centre development
communication cost » communication costs, communication costa, communications costs
data communication » data communications
development inter » development intel, development center, development index
relation 3.3.2 » relations 3.3.2, relation 5.3.2, relations 2.3.2
technology 4 » technology _, technology 1, technology 3
3.3.2 crisis » 6.3.2 crisis, 13.2.2 crisis, 3.3.2 cross
cost centers » youth centers, care centers, call centers
crisis data » crisis dating, crisis update, crisis david
inter actor » inter action
4 relation » _ relation, 5 relation, 2 relation

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

• Adding a wildcard symbol may retrieve word variants: technology 4 relation 3.3.2 crisis data communication cost centers development inter actor.*.