Perhaps you should try some spelling variations:
thuc dant » thuoc dang, thuc hanh, thuc vat
thuc dan » thuc hanh, hoc dan, thuc vat
hieu ve » hieu va, hieu van
va sac » va cac, va suc, va san
vi cua » vai cua, di cua
ve nam » he nam, va nam, le nam
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: va sac ky nang ((ma hoi) or (ma hoa)). hieu ve nam ((thuc dan) or (thuc dant)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: va sac ky nang ((ma hoi) OR (ma hoa)). hieu ve nam ((thuc dan) OR (thuc dant)) hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: va sac ky nang ((ma hoi) or (ma hoa)). hieu ve nam ((thuc dan) or (thuc dant)) hanh vi cua te*.