Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
thanh van » thanh san, thanh toan, thanh phan
bach tuoc » sach duoc, sach nuoc
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
cuu tre » cua tre, cau tren, cau treo
tuoc va » thuoc va, nuoc va, duoc va
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang o » nang co, nang ho, nang ro
cua te » cua tu
cua su » qua su
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: te sach ty nang o hoi. hieu vien bach tuoc va thanh van ((cuu tre) or (((cua te) or (cua su))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang o hoi. hieu vien bach tuoc va thanh van ((cuu tre) OR (((cua te) OR (cua su)))).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang o hoi. hieu vien bach tuoc va thanh van ((cuu tre) or (((cua te) or (cua su))))*.