Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van nang » van quang, van dong, van dung
cac thuc » cach thuc, cac thu, can thuc
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
so sach » so sanh, bo sach, co sach
qua cac » cua cac
hanh di » hanh vi, hanh de, hang di
v nang » va nang, vu nang, voi nang
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((((v nang) OR (van nang))) or (van ban)) xa hoi. hieu qua cac thuc dan hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((((v nang) OR (van nang))) OR (van ban)) xa hoi. hieu qua cac thuc dan hanh di cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((((v nang) OR (van nang))) or (van ban)) xa hoi. hieu qua cac thuc dan hanh di cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ((((v nang) OR (van nang))) or (van ban)) xa hoi. hieu qua cac thuc dan hanh di cua triet*.