Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
yan liang » yang liang, wang liang, you liang
can child » care child, can build, can china
longer do » longer _, longer a
den gang » deng gang, den umgang, den zugang
der gang » der umgang
long do » long d, long du, long ago

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((yan liang) or (yang guang)) can child ((den gang) OR (der gang)) 3 ((longer do) or (long do)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yan liang) OR (yang guang)) can child ((den gang) OR (der gang)) 3 ((longer do) OR (long do)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yan liang) or (yang guang)) can child ((den gang) OR (der gang)) 3 ((longer do) or (long do)) ;*".