Perhaps you should try some spelling variations:
development chapter » development center, development case
urban development » human development
relations 7.5 » relations 2.5, relations 7.1, relations 7.3
technology 1 » technology _
1 relations » 3 relations, a relations, 1.2 relations
den written » der dritten, des dritten, dem dritten
costs urban » cost urban, across urban, crisis urban
chapter ten » chapter two, chapter three, chapter nine
7.5 den » 7.5 der, 7.5 deep, 7.5 does

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

• Adding a wildcard symbol may retrieve word variants: technology 1 relations 7.5 den written communication costs urban development chapter ten.*.