Perhaps you should try some spelling variations:
han china » hang china, than china, can china
yang qing » yang jing, yang liang, yang using
qing long » going long, using long
yan guan » gan guan, yan yuan, yang guang
yuan hui » yuan fei, jaan hui, tuan hua
wei yang » pei yang, wei wang, wei yang's
tan hua » tuan hua, wang hua, tan chia
wang » wing, wan, lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yan) or (yan guan)) ((((yuan hui) or (tan hua))) or (han china)) wei yang qing long run ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yan) OR (yan guan)) ((((yuan hui) OR (tan hua))) OR (han china)) wei yang qing long run ;.
• Adding a wildcard symbol may retrieve word variants: ((wang yan) or (yan guan)) ((((yuan hui) or (tan hua))) or (han china)) wei yang qing long run ;*.