Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
hear gain » heat gain
can hear » can gear, can learn, can help
ying jin » yang jin, jing ji, yang jie
wan man » woran man, wenn man, wan ming
yang yi » yang di, yang xi, yang jui
kann » ann
tan » than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wan man) OR (kann man)) can hear gain ((yang liang) or (((ying jin) or (yang yi)))) hong tan ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan man) OR (kann man)) can hear gain ((yang liang) OR (((ying jin) OR (yang yi)))) hong tan ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan man) OR (kann man)) can hear gain ((yang liang) or (((ying jin) or (yang yi)))) hong tan ;".
• Adding a wildcard symbol may retrieve word variants: ((wan man) OR (kann man)) can hear gain ((yang liang) or (((ying jin) or (yang yi)))) hong tan ;*.