Perhaps you should try some spelling variations:
shen what » when what, sheet what, shown what
tan yang » dan yang, tan yong, tao yang
tan ying » fan ying, ran ying, tan yong
yao yang » yang yang
jia shen » jian she, yi shen
what tax » what can, flat tax, what a
code a » code _, code 2

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: wan ((((tan yang) OR (tan ying))) OR (yao yang)) jia shen what tax code a ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((((tan yang) OR (tan ying))) or (yao yang)) jia shen what tax code a ;~".
• Adding a wildcard symbol may retrieve word variants: wan ((((tan yang) OR (tan ying))) or (yao yang)) jia shen what tax code a ;*.