Perhaps you should try some spelling variations:
birth timing » burst timing
timing dong » timing does
dong skin » dong sin, dong bin, dof skin
dan yang » daun yang, tan yang, wang yang
yao yang » yang yang
ii first » ai first, 2 first, 3 first
i first » ai first, 2 first, 3 first

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang ((dan yang) or (yao yang)) ((ii first) or (i first)) birth timing dong skin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang ((dan yang) OR (yao yang)) ((ii first) OR (i first)) birth timing dong skin ;.
• Adding a wildcard symbol may retrieve word variants: lang ((dan yang) or (yao yang)) ((ii first) or (i first)) birth timing dong skin ;*.