Perhaps you should try some spelling variations:
regional scale » regional state, regional share, national scale
ida regional » india regional, a regional, do regional
scale urban » safe urban, shape urban, space urban
china mae » china made, china may, china ma
dong di » dong sin
a ida » _ ida, a da, a iga

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((wan or lang) yan) or (dong di)) a ida regional scale urban china mae ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((wan OR lang) yan) OR (dong di)) a ida regional scale urban china mae ;*.