Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
yuan chang » yuan cheng, huang chang, han chang
yang yang » wang yang, wang yan
you xian » you liang, you can, you mean
china pt » china past, china part, china path
long d » long do, long du, long _
pt un » et un, pt sn
un a » run a, und a, up a

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((((yang yang) or (yuan chang))) or (you xian))) or (yang liang)) can china pt un a long d ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((yang yang) OR (yuan chang))) OR (you xian))) OR (yang liang)) can china pt un a long d ;.
• Adding a wildcard symbol may retrieve word variants: ((((((yang yang) or (yuan chang))) or (you xian))) or (yang liang)) can china pt un a long d ;*.