Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cam thuc » am thuc, nam thuc, can thuc
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cam thu » nam thu, cac thu, ca thu
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
y nang » ky nang, ly nang, v nang
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: su sach y nang ma hoi. hieu ve ((cam thuc) OR (cam thu)) va hanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoi. hieu ve ((cam thuc) OR (cam thu)) va hanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. hieu ve ((cam thuc) OR (cam thu)) va hanh vai cua triet*.