Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
than china » tuan china, han china, wuhan china
yan wang » yuan wang, yang yang, qian wang
tuan hua » tan hua, tuan vu, yuan hui
pei wang » pei yang, wei wang, li wang
long do » long du, longer do, long ago
long d » long du, long _, long 2

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan wang) or (yang guang)) ((tuan hua) or (than china)) pei wang yan ((long do) OR (long d)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan wang) OR (yang guang)) ((tuan hua) OR (than china)) pei wang yan ((long do) OR (long d)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan wang) or (yang guang)) ((tuan hua) or (than china)) pei wang yan ((long do) OR (long d)) ;".
• Adding a wildcard symbol may retrieve word variants: ((yan wang) or (yang guang)) ((tuan hua) or (than china)) pei wang yan ((long do) OR (long d)) ;*.