Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
yang yang » wang yang, wang yan
huei ying » hui ying, hoi ying
tan chia » tuan china, than china, can china
hui yang » hui ying, du yang, h yang
long do » long d, longer do, long ago
long du » long d, long run, long did

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yang yang) or (yang guang)) tan chia ((hui yang) or (huei ying)) 2 ((long do) OR (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yang yang) OR (yang guang)) tan chia ((hui yang) OR (huei ying)) 2 ((long do) OR (long du)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang yang) or (yang guang)) tan chia ((hui yang) or (huei ying)) 2 ((long do) OR (long du)) ;*".