Perhaps you should try some spelling variations:
dong ryang » dong yang
dong hoang » hong hong
wei yang's » yiwei wang's
huei ying » hoi ying
hui ying » hoi ying, hui ping, hui yang
a wei » a weit, ha wei, ma wei
et a » et al, et la, e a
ryang » rryang
yan » ryan
yang's » ryang's

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((dong ryang) or (dong hoang))) or (wang yan)) et a wei yang's ((hui ying) OR (huei ying)) shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong ryang) OR (dong hoang))) OR (wang yan)) et a wei yang's ((hui ying) OR (huei ying)) shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((dong ryang) or (dong hoang))) or (wang yan)) et a wei yang's ((hui ying) OR (huei ying)) shu ;*".