Perhaps you should try some spelling variations:
yang guang » yan guan, yang liang
than china » tuan china, han china, wuhan china
yang yang » wang yang
hui ying » huei ying, hoi ying, hui ping
yu gang » xu gang, yi gang, yu fang
long du » long d, long do, long run
3 long » a long, 2 long, 3.2 long

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 (wang yan))) or (yang guang)) than china ((yu gang) or (hui ying)) 3 long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yang yang) OR (wang yan))) OR (yang guang)) than china ((yu gang) OR (hui ying)) 3 long du ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yang) OR (wang yan))) or (yang guang)) than china ((yu gang) or (hui ying)) 3 long du ;*".