Perhaps you should try some spelling variations:
thuc dant » thuoc dang, thuc hanh, thuc vat
cua triet » cua viet, su triet, va triet
thuc dan » thuc hanh, hoc dan, thuc vat
nang ma » tang ma, sang ma, nang cao
thi van » thi lan, thi hanh, thi nang
cua tre » cua te, cuu tre, dua tren
ma hoi » mai hoi, xa hoi, ma hoa

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 nang ma hoi. thi van nam ((thuc dan) or (thuc dant)) hanh vi ((cua tre) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ma hoi. thi van nam ((thuc dan) OR (thuc dant)) hanh vi ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ma hoi. thi van nam ((thuc dan) or (thuc dant)) hanh vi ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ma hoi. thi van nam ((thuc dan) or (thuc dant)) hanh vi ((cua tre) OR (cua triet))*.