Perhaps you should try some spelling variations:
knowing about » known about, know about, knowing your
lang oanh » lang lang
oanh tran » anh tran, anh tuan, binh tran
kong saur » kong sar, kong siu, kong your
tran duc » tran dat, tran dai
duc oven » duc vien
von sam » von sa, von sap, von scham
king » wing, kind, ming

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang oanh tran duc oven (king OR ping) john ((von sam) or (((kong saur) or (knowing about)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang oanh tran duc oven (king OR ping) john ((von sam) OR (((kong saur) OR (knowing about)))) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang oanh tran duc oven (king OR ping) john ((von sam) or (((kong saur) or (knowing about)))) ;*".