Perhaps you should try some spelling variations:
sach tham » sach nha
tham lang » nham nang, pham hang, thai bang
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
su triet » su viet, su tien, ve triet
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
va cham » va chat, va tham

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 ((va cac) or (va cham)) tuc ((van hanh) OR (ban hanh)) lai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tham lang xa hoi. hieu ((va cac) OR (va cham)) tuc ((van hanh) OR (ban hanh)) lai su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tham lang xa hoi. hieu ((va cac) or (va cham)) tuc ((van hanh) OR (ban hanh)) lai su triet".
• Adding a wildcard symbol may retrieve word variants: tu sach tham lang xa hoi. hieu ((va cac) or (va cham)) tuc ((van hanh) OR (ban hanh)) lai su triet*.