Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vai » hanh vi, hanh va, hanh tai
thuc dan » thuc hanh, hoc dan
vai cua » dai cua, hai cua, lai cua
su sach » vu sach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
ve am » va am

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) OR (so sach)) ky lang xa hoi. hieu ve am ((thuc dan) or (thuc vat)) hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky lang xa hoi. hieu ve am ((thuc dan) OR (thuc vat)) hanh vai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky lang xa hoi. hieu ve am ((thuc dan) or (thuc vat)) hanh vai cua triet*".