Perhaps you should try some spelling variations:
where using » were using, when using
kang young » wang hyoung
bent when » best when, debt when, text when
using smt » using sat, using smc, using smart
yang jie » yang jin, yang di, yang yi
yang jui » yang judy, yang di, yang yi
yang xi » yang di, yang yi

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: kang young ((yang jie) OR (((yang jui) OR (yang xi)))) bent when where using smt ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "kang young ((yang jie) or (((yang jui) OR (yang xi)))) bent when where using smt ;~".
• Adding a wildcard symbol may retrieve word variants: kang young ((yang jie) or (((yang jui) OR (yang xi)))) bent when where using smt ;*.