Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
hui coping » hui ping, iii coping, zum coping
you liang » you xian, you liangzhi
coping a » copying a, coping _, scoping _
wan yan » wang yan, wai yan, wang yang
nan yan » nan ya, wang yan, qian yan
long d » long do, long du, long _

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wan yan) OR (nan yan))) OR (you liang)) ((yuan fei) OR (than china)) hui coping a long d ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wan yan) OR (nan yan))) or (you liang)) ((yuan fei) or (than china)) hui coping a long d ;~".
• Adding a wildcard symbol may retrieve word variants: ((((wan yan) OR (nan yan))) or (you liang)) ((yuan fei) or (than china)) hui coping a long d ;*.