Perhaps you should try some spelling variations:
cua triet » su triet, va triet
toc sach » hoc sach, doc sach, thuoc sach
cua viet » ca viet, hoa viet, cua vat
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
lang xa » lang ha, dang xay, lang van
sach xa » sach dao, sach nha, sach bai
danh vi » hanh vi, dinh vi, danh di
xa lang » va lang, ba lang, ha lang
tuc va » thuc va, truc va, duc va

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

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