Perhaps you should try some spelling variations:
regional tax » regional taxes, region's tax, regional tfp
dong sind » dong sin, dong bin, dong ping
tang dang » tang tang, wang dan
dang hari » dang hai
tax tang » tang tang, tax tax, tax take
ya a » a a, y a, yu a
ye a » yet a, e a, me a
wang » lang

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 wing) or wan) yan) or (dong sind)) ((ya a) or (ye a)) regional tax tang dang hari ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang OR wing) OR wan) yan) OR (dong sind)) ((ya a) OR (ye a)) regional tax tang dang hari ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wang OR wing) or wan) yan) or (dong sind)) ((ya a) or (ye a)) regional tax tang dang hari ;*".