Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
vi reform » ii reform, viii reform, die reform
dang hari » dang hai
wen wang » wei wang, chen wang, weng fang
i reform » ii reform, 3 reform, 2 reform
a david » 2 david, de david, et david
a davis » _ davis, m davis, e davis

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

• Performing a fuzzy search may retrieve terms with similar spellings: wen wang yang ((vi reform) or (i reform)) ((a david) OR (a davis)) dang hari ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wen wang yang ((vi reform) OR (i reform)) ((a david) OR (a davis)) dang hari ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wen wang yang ((vi reform) or (i reform)) ((a david) OR (a davis)) dang hari ;*".