Perhaps you should try some spelling variations:
sach tham » sach nha
su triet » su viet, su tien, ve triet
sach tai » sach bai, sach dao, sach xa
hanh lai » hanh lam, hanh tai, thanh lap
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
lang xa » lang ha, dang xay, lang van
tuc va » thuc va, truc va, tuc xa
va cao » va cac, va co, va dao

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