Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
va hanh » va thanh, va danh, ban hanh
ve chat » va chat, van chat
tu sach » thu sach, te sach, tu cach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
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) OR (su sach)) ky lang xa hoi. hieu ve chat xuc ((va hanh) or (van hanh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky lang xa hoi. hieu ve chat xuc ((va hanh) OR (van hanh)) vi su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) ky lang xa hoi. hieu ve chat xuc ((va hanh) or (van hanh)) vi su triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) ky lang xa hoi. hieu ve chat xuc ((va hanh) or (van hanh)) vi su triet*.