Perhaps you should try some spelling variations:
dong ryangg » dong yang
board tax » board team, board iab, board a
due debt » does debt, pure debt, run debt
bad tax » based tax, land tax, road tax
long yu » hong yu, long du, rong yu
ryangg » ryanggg, rryangg
yan » yang, ryan
ryanga » ryangga, rryanga
ryana » ryanga, rryana

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong ryangg) or (wang yan)) (ryanga or ryana) due debt ((bad tax) OR (board tax)) long yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong ryangg) OR (wang yan)) (ryanga OR ryana) due debt ((bad tax) OR (board tax)) long yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong ryangg) or (wang yan)) (ryanga or ryana) due debt ((bad tax) OR (board tax)) long yu ;".
• Adding a wildcard symbol may retrieve word variants: ((dong ryangg) or (wang yan)) (ryanga or ryana) due debt ((bad tax) OR (board tax)) long yu ;*.