Perhaps you should try some spelling variations:
dang hai » dang khai, hang hai, dung hai
cam duc » cam xuc, pham duc, nam duoc
hai cua » thai cua, dai cua, hoi cua
thu san » thuy san, thu ban, phu san
va dang » van dang, va nang, va lang
hieu ve » hieu va, hieu van
cao duc » dao duc, cao suc, giao duc
tu sac » tu sach, tu cac, tu san
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (thu san)) ky nang x hoi. hieu ve ((cam duc) or (cao duc)) va dang hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (thu san)) ky nang x hoi. hieu ve ((cam duc) OR (cao duc)) va dang hai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (thu san)) ky nang x hoi. hieu ve ((cam duc) or (cao duc)) va dang hai cua te*.