Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
ve dat » de dat, va dat, ve dao
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ((x hoi) or (o hoi)). hieu ve dat nuoc va danh di ((cua tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((x hoi) OR (o hoi)). hieu ve dat nuoc va danh di ((cua tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((x hoi) or (o hoi)). hieu ve dat nuoc va danh di ((cua tre) or (su triet))*.