Perhaps you should try some spelling variations:
ve triet » va trien, su triet
van hanh » van thanh, ban hanh, van anh
chau phu » chau phi, chau au, chau tho
cau luc » cau truc, cau phuc
va hanh » va thanh, va danh, ban hanh
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
vi ve » va ve, gi ve, ve ve

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 ((cau luc) or (chau phu)) ((va hanh) or (van hanh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoi. hieu ve ((cau luc) OR (chau phu)) ((va hanh) OR (van hanh)) vi ve triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. hieu ve ((cau luc) or (chau phu)) ((va hanh) or (van hanh)) vi ve triet*.