Perhaps you should try some spelling variations:
cam truc » cau truc, nam truc, lam truoc
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam

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 truc ((va hanh) OR (va danh)) va su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoi. hieu ve cam truc ((va hanh) OR (va danh)) va su triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoi. hieu ve cam truc ((va hanh) OR (va danh)) va su triet*.