Perhaps you should try some spelling variations:
yang guang » yang yang, yang liang
yan huang » yan liang, yan wang, yan yuan
chih hang » chin chang, shih huang, chih yung
hang seng » fang sheng
seng dong » jeng dong, eng hong, zeng doug
yan guan » gan guan, yan yuan, yihan guan
sin » sign, sind, skin

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

• Performing a fuzzy search may retrieve terms with similar spellings: wing ((((yan huang) OR (yan guan))) or (yang guang)) lin chih hang seng dong sin ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing ((((yan huang) OR (yan guan))) OR (yang guang)) lin chih hang seng dong sin ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wing ((((yan huang) OR (yan guan))) or (yang guang)) lin chih hang seng dong sin ;*".