Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
hieu viec » nhieu viec, hieu ve, sieu viet
thanh loi » thanh hoa, thanh hai, thanh lap
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
tuoc va » thuoc va, nuoc va, duoc va
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
vu sac » vu sach, vu san, va sac

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: vu sac ky nang xa hoi. ((hieu viec) OR (hieu van)) bach tuoc va thanh loi ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang xa hoi. ((hieu viec) or (hieu van)) bach tuoc va thanh loi ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang xa hoi. ((hieu viec) or (hieu van)) bach tuoc va thanh loi ((cua tre) OR (cuu tre))*.