Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cham tuc » nham thuc, pham thuc, tham thuc
van anh » van thanh, van minh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
sac ky » cac ky, sai ky
vai su » va su, van su, lai su
su sac » su sach, su cac, su xac
o hoi » co hoi, o hoc, o hai
tuan » quan, tran, luan

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 sac ky nang ((5 hoi) OR (o hoi)). hieu va cham tuc ((van anh) OR (tuan anh)) vai su triet~.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ((5 hoi) or (o hoi)). hieu va cham tuc ((van anh) or (tuan anh)) vai su triet*.