Perhaps you should try some spelling variations:
"earth frontiers of global politics economy" » "earth frontiers of global political economy", "earth frontiers of global politico economic", "earth frontiers of global political economic", "earth frontier of global politics economy", "research frontiers of global politics economy", "arctic frontiers of global politics economy"
"earth frontiers of global policy economy" » "earth frontier of global policy economy", "research frontiers of global policy economy", "arctic frontiers of global policy economy", "earth frontiers of global policy economic", "earth frontiers of global polish economy", "earth frontiers of global policy ecology", "earth frontiers of global public economy"

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: (("earth frontiers of global politics economy") OR ("earth frontiers of global policy economy"))*.
• Removing quotes may allow a broader search: (( earth frontiers of global politics economy ) or ( earth frontiers of global policy economy ))*.