Perhaps you should try some spelling variations:
"politics contemporary china" » "its contemporary china", "periods contemporary china"
"polish contemporary culture" » "polish contemporary chinese"
"ethics contemporary city" » "studies contemporary city", "its contemporary city", "within contemporary city", "ethics contemporary chinese"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("polish contemporary culture") OR ((("politics contemporary china") OR ("ethics contemporary city")))).
• Removing quotes may allow a broader search: (( polish contemporary culture ) or ((( politics contemporary china ) or ( ethics contemporary city )))).
• Adding a wildcard symbol may retrieve word variants: (("polish contemporary culture") or ((("politics contemporary china") or ("ethics contemporary city"))))*.