Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
va hanh » va danh, ban hanh, dao hanh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
vi su » va su, ve su, ki su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky lang xa hoi. hieu van cau xuc ((((va hanh) OR (va thanh))) or (van hanh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu van cau xuc ((((va hanh) OR (va thanh))) OR (van hanh)) vi su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. hieu van cau xuc ((((va hanh) OR (va thanh))) or (van hanh)) vi su triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu van cau xuc ((((va hanh) OR (va thanh))) or (van hanh)) vi su triet*.