Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
van anh » van thanh, van minh
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
vai su » va su, van su, lai su
x hoi » xa hoi, x ho, 5 hoi
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 ((x hoi) OR (o hoi)). hieu ve cam tuc ((van anh) OR (tuan anh)) vai su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang ((x hoi) OR (o hoi)). hieu ve cam tuc ((van anh) or (tuan anh)) vai su triet~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ((x hoi) OR (o hoi)). hieu ve cam tuc ((van anh) or (tuan anh)) vai su triet*.