Perhaps you should try some spelling variations:
best when » debt when, text when
bent when » debt when, text when, benefit when
best what » get what, best way, text what
wan ming » kian ming, chan ming, yuan ming
ran ying » fan ying, tan ying, jin ying
thi hong » tan hong
hong yu » wong yue

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((wan ming) or (ran ying)) hua ((((best when) or (bent when))) or (best what)) thi hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((wan ming) OR (ran ying)) hua ((((best when) OR (bent when))) OR (best what)) thi hong yu ;.
• Adding a wildcard symbol may retrieve word variants: wang ((wan ming) or (ran ying)) hua ((((best when) or (bent when))) or (best what)) thi hong yu ;*.