Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc dan » thuc hanh, hoc dan, thuc vat
hanh vai » hanh vi, hanh va, hanh tai
doc sac » doc sach, dac sac, hoc sach
nang ma » tang ma, sang ma, nang cao
hieu vi » hieu voi, hieu va, hieu ve
thuc va » thuc vat, thuc day
vai cua » dai cua, hai cua, lai cua
sac ky » cac ky, sai ky
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: doc sac ky nang ma hoi. hieu vi pham ((thuc va) or (thuc dan)) hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sac ky nang ma hoi. hieu vi pham ((thuc va) OR (thuc dan)) hanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: doc sac ky nang ma hoi. hieu vi pham ((thuc va) or (thuc dan)) hanh vai cua triet*.