Perhaps you should try some spelling variations:
cai trung » tai trung, cac trung, cai trang
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
trung va » truong va, trang va, trung ha
so sach » so sanh, co sach, hoc sach
nang xa » nang x, lang xa, nang ma
bo sach » co sach, hoc sach
qua cai » qua hai, qua cac, qua ca
v nang » va nang, vu nang, van nang

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: ((so sach) OR (bo sach)) v nang xa hoi. hieu qua cai trung va thanh vi ((cua triet) OR (cua viet))~.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (bo sach)) v nang xa hoi. hieu qua cai trung va thanh vi ((cua triet) or (cua viet))*.