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

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: lang hyoung ((yang jie) OR (yang xi)) bent when when using smt ;~.
• Adding a wildcard symbol may retrieve word variants: lang hyoung ((yang jie) or (yang xi)) bent when when using smt ;*.