Perhaps you should try some spelling variations:
cua triet » su triet, va triet
truc van » truc va, thuc van, truc ban
cua viet » ca viet, hoa viet, cua vat
hieu ve » hieu va, hieu van
van anh » van thanh, tuan anh, van minh
su sai » su tai, su hai, su dai
sai ky » sac ky
anh vi » hanh vi, anh va, anh ve
x hoi » xa hoi, o hoi, x ho

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: su sai ky nang x hoi. ((hieu ve) OR (lieu va)) cau truc van anh vi ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky nang x hoi. ((hieu ve) or (lieu va)) cau truc van anh vi ((cua triet) OR (cua viet))~".
• Adding a wildcard symbol may retrieve word variants: su sai ky nang x hoi. ((hieu ve) or (lieu va)) cau truc van anh vi ((cua triet) OR (cua viet))*.