Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
sach ky » sac ky, sach y, sach ty
te sach » toc sach
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
cac xuc » cam xuc, cac nuoc, chat xuc
ve su » va su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((nang x) or (nang ma)) hoi. hieu va cac xuc ((va hanh) or (va danh)) ve su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang x) OR (nang ma)) hoi. hieu va cac xuc ((va hanh) OR (va danh)) ve su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang x) or (nang ma)) hoi. hieu va cac xuc ((va hanh) or (va danh)) ve su triet*.