Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
pham thuc » phap thuc, pham chuc, nham thuc
thuc van » thuc vat, thuc dan, thuc va
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
sach ky » sach y, sach ty, sach kem
nang ma » tang ma, sang ma, nang cao
hieu vi » hieu voi, hieu va, hieu ve
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: hoc ((sach ky) OR (sac ky)) nang ma hoi. hieu vi pham thuc van hanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sach ky) OR (sac ky)) nang ma hoi. hieu vi pham thuc van hanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: hoc ((sach ky) OR (sac ky)) nang ma hoi. hieu vi pham thuc van hanh vai cua triet*.