Perhaps you should try some spelling variations:
david ian » david a, david n
wan wang » yan wang, wang yang, qian wang
wen wang » wei wang, chen wang, weng fang
yan zili » yang zili, yan zi
yan zhi » yan zi, wang zhi
ian hai » dang hai
form a » form _, reform a
form i » form _, reform i

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wan wang) OR (wen wang)) ((yan zili) or (yan zhi)) ((form a) or (form i)) david ian hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan wang) OR (wen wang)) ((yan zili) OR (yan zhi)) ((form a) OR (form i)) david ian hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan wang) OR (wen wang)) ((yan zili) or (yan zhi)) ((form a) or (form i)) david ian hai ;*".