Perhaps you should try some spelling variations:
cam duc » cam xuc, pham duc, nam duoc
hai cua » thai cua, dai cua, hoi cua
thu san » thuy san, thu ban, phu san
dan hai » doan hai, dang hai, dan khai
hieu ve » hieu va, hieu van
cao duc » dao duc, cao suc, giao duc
tu san » tu ban, tu can, vu san
va dan » ca dan, va dao, va dau
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 san) or (thu san)) ky nang x hoi. hieu ve ((cam duc) or (cao duc)) va dan hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (thu san)) ky nang x hoi. hieu ve ((cam duc) OR (cao duc)) va dan hai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (thu san)) ky nang x hoi. hieu ve ((cam duc) or (cao duc)) va dan hai cua te*.