Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
cham tuc » nham thuc, pham thuc, tham thuc
va hanh » van hanh, va danh, ban hanh
sach ky » sac ky, sach y, sach kem
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
sach ty » sach y, sach tu, sach thu
ve cham » va cham, ve chat, vu cham

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ky) OR (sach ty)) tang xa hoi. hieu ve cham tuc ((va hanh) or (va thanh)) dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach ty)) tang xa hoi. hieu ve cham tuc ((va hanh) OR (va thanh)) dai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach ty)) tang xa hoi. hieu ve cham tuc ((va hanh) or (va thanh)) dai cua triet*".