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 daem » than daem, thanh dam
yun wei » tun wei, yeung wei, june wei
han wei » zhan wei, ha wei, han fei
yu wei » lu wei, du wei, yu fei
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 daem ((((yu wei) OR (yun wei))) or (han wei)) guang ying knowing about ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: binh thanh daem ((((yu wei) OR (yun wei))) OR (han wei)) guang ying knowing about ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "binh thanh daem ((((yu wei) OR (yun wei))) or (han wei)) guang ying knowing about ;*".