Perhaps you should try some spelling variations:
sach tham » sach nha
tham lang » nham nang, pham hang, thai bang
su triet » su viet, su tien, ve triet
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
ve cai » va cai, ve tai, ve cau
lam su » lai su, lam so, lam vu
ve cac » va cac, vien cac

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 tham lang xa hoi. hieu ((ve cai) or (ve cac)) xuc ((va hanh) or (van hanh)) lam su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tham lang xa hoi. hieu ((ve cai) OR (ve cac)) xuc ((va hanh) OR (van hanh)) lam su triet.
• Adding a wildcard symbol may retrieve word variants: tu sach tham lang xa hoi. hieu ((ve cai) or (ve cac)) xuc ((va hanh) or (van hanh)) lam su triet*.