Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
wang chih » wang chi, wang zhi, wang chau
chih hang » chin chang, shih huang, chih yung
wang ban » wang yan, wang yang, bang bang
wang dan » wang yan, wang yidan, wang yang
six west » die west, six week
hang sy » hoang sy, chang su, zhang si
six we » six week

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (((wang ban) OR (wang dan)))) ya ((six west) OR (six we)) wang chih hang sy ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (((wang ban) or (wang dan)))) ya ((six west) OR (six we)) wang chih hang sy ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (((wang ban) or (wang dan)))) ya ((six west) OR (six we)) wang chih hang sy ;*.