Perhaps you should try some spelling variations:
yang yulu » mang yul, yang yue, yang yun
yulu chen » yu chen
chen yang » chen rong
john kong » john king, john song, john bonn
john wong » john song, john bonn
wang dan » wang yan, wang ban, wang yidan
dan yang » daun yang, tan yang, wang yang

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang dan yang yulu chen yang ((john kong) OR (john wong)) (sar or star) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dan yang yulu chen yang ((john kong) OR (john wong)) (sar OR star) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang dan yang yulu chen yang ((john kong) OR (john wong)) (sar or star) ;".
• Adding a wildcard symbol may retrieve word variants: wang dan yang yulu chen yang ((john kong) OR (john wong)) (sar or star) ;*.