Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
than china » tuan china, han china, wuhan china
yan liang » yang liang, wang liang, yan wang
you liang » you xian, you liangzhi
h yang » _ yang, hui yang
2 long » a long, 3 long, 3.2 long
long d » long do, long du, 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 (you liang))) or (yang guang)) than china ((du yang) or (h yang)) 2 long d ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((yan liang) OR (you liang))) OR (yang guang)) than china ((du yang) OR (h yang)) 2 long d ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yan liang) OR (you liang))) or (yang guang)) than china ((du yang) or (h yang)) 2 long d ;*".