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

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

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