Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, peng liang
yang yang » wang yang, wang yan
china has » china have
china how » china hong
yang day » yang dean, yang dali, yang di
day long » baby long, day one, day line
long du » long d, long do, long run

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: ((yang liang) OR (yang yang)) taiwan ((china has) OR (china how)) yang day long du ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang yang)) taiwan ((china has) OR (china how)) yang day long du ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang yang)) taiwan ((china has) OR (china how)) yang day long du ;*.