Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
canh tay » canh tac, thanh tay, anh ta
quoc ban » quoc bao, quoc lan, quoc quan
lam quoc » lam duoc, nam quoc, lam thuoc
ban ban » ban banh, van ban, can ban
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach ty
va lam » van lam, va lap
ban vi » ban voi, ban va, ban ve
vi cua » vai cua, di cua
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((canh tay) or (sach tu)) nang ((x hoi) OR (o hoi)). hieu va lam quoc ban ban vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((canh tay) OR (sach tu)) nang ((x hoi) OR (o hoi)). hieu va lam quoc ban ban vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((canh tay) or (sach tu)) nang ((x hoi) OR (o hoi)). hieu va lam quoc ban ban vi cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((canh tay) or (sach tu)) nang ((x hoi) OR (o hoi)). hieu va lam quoc ban ban vi cua triet*.