Perhaps you should try some spelling variations:
between communities » between community, salween communities, between communication
development center » development case
communities costs » communities across, communities co, communities cope
urban development » human development
relations 5.1 » relations 2.1, relations 3.1, relations 1
technology 1 » technology _
1 relations » 3 relations, a relations, 1.2 relations
costs urban » cost urban, across urban, crisis urban
center ten » center step, center can, peter ten

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

• Adding a wildcard symbol may retrieve word variants: technology 1 relations 5.1 _ between communities costs urban development center ten.*.