Perhaps you should try some spelling variations:
thien van » thi van
thuc dant » thuoc dang, thuc hanh, thuc vat
thuc dan » thuc hanh, hoc dan, thuc vat
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky tang ma hoi. thien van nam ((thuc dan) or (thuc dant)) hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky tang ma hoi. thien van nam ((thuc dan) OR (thuc dant)) hanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu cac ky tang ma hoi. thien van nam ((thuc dan) or (thuc dant)) hanh vi cua tre*.