Perhaps you should try some spelling variations:
su triet » su viet, ve triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, dia danh
su tien » su kien, su hien, tu tieng
va hanh » van hanh, va thanh, ban hanh
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ve cam » ve cham, ve cac, va cam
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 ky nang ma hoi. hieu ve cam xuc ((va hanh) or (va danh)) vi ((su triet) OR (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ma hoi. hieu ve cam xuc ((va hanh) OR (va danh)) vi ((su triet) OR (su tien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ma hoi. hieu ve cam xuc ((va hanh) or (va danh)) vi ((su triet) OR (su tien))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ma hoi. hieu ve cam xuc ((va hanh) or (va danh)) vi ((su triet) OR (su tien))*.