Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lam truoc » lam thuoc, nam truoc, lam truong
nam truc » nam truoc, nam thuc, nam trung
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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 v nang ma hoa. hieu ve ((lam truoc) or (nam truc)) van hanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang ma hoa. hieu ve ((lam truoc) OR (nam truc)) van hanh dai cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach v nang ma hoa. hieu ve ((lam truoc) or (nam truc)) van hanh dai cua triet*.