Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
qian wang » yiqian wang, qian rong, qian yan
yang yang » wang yang, wang yan
tan chew » tan cheng, tan chwee, tan siew
pei yang » wei yang, hui yang, pei yun
yang du » yang di, yang d, yang mu
long du » long d, long run, long did
long do » long d, longer do, long ago

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: ((((yan liang) OR (qian wang))) OR (yang yang)) tan chew pei yang du ((long du) OR (long do)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yan liang) or (qian wang))) or (yang yang)) tan chew pei yang du ((long du) OR (long do)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yan liang) or (qian wang))) or (yang yang)) tan chew pei yang du ((long du) OR (long do)) ;*.