Perhaps you should try some spelling variations:
knowing about » known about, know about, knowing your
ying knowing » seeing knowing
guang ying » huang ying, huang jing, huang ting
thanh dam » than daem, thanh van
han fei » yan fei, han feizi, yuan fei
han wei » zhan wei, ha wei, zhang wei
yu wei » yun wei, lu wei, du wei
binh » bin, minh, dinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: binh thanh dam ((yu wei) or (((han fei) OR (han wei)))) guang ying knowing about ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: binh thanh dam ((yu wei) OR (((han fei) OR (han wei)))) guang ying knowing about ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "binh thanh dam ((yu wei) or (((han fei) OR (han wei)))) guang ying knowing about ;*".