Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan
yang liang » wang liang, yang yang, peng liang
than china » tuan china, han china, wuhan china
yan liang » wang liang, you liang, yan wang
long du » long d, long do, long run
h yang » _ yang, hui yang
2 long » a long, 3 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: ((yan liang) or (((yang guang) OR (yang liang)))) than china ((du yang) or (h yang)) 2 long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan liang) OR (((yang guang) OR (yang liang)))) than china ((du yang) OR (h yang)) 2 long du ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (((yang guang) OR (yang liang)))) than china ((du yang) or (h yang)) 2 long du ;*".