Perhaps you should try some spelling variations:
region's taxes » regional taxes, region's farmers
region's tax » regional tax, regions ten
than change » chain change, can change, mean change
change mae » chang mae, change may, change maps
dong di » dong sin
ya a » a a, y a, ye a
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((wang or lang) yan) or (dong di)) ya a ((region's tax) or (region's taxes)) than change mae ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((wang OR lang) yan) OR (dong di)) ya a ((region's tax) OR (region's taxes)) than change mae ;.
• Adding a wildcard symbol may retrieve word variants: (((wang or lang) yan) or (dong di)) ya a ((region's tax) or (region's taxes)) than change mae ;*.