Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach ky » sach y, sach ty, sach kem
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
cao xuc » cam xuc, cao duc, cao suc
sac ky » cac ky, sai ky
va cao » va cac, va co, va dao
ve su » va su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sac ky)) nang xa hoi. hieu va cao xuc ((va hanh) OR (va danh)) ve su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ky) OR (sac ky)) nang xa hoi. hieu va cao xuc ((va hanh) or (va danh)) ve su triet~".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) OR (sac ky)) nang xa hoi. hieu va cao xuc ((va hanh) or (va danh)) ve su triet*.