Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec lam » viec va
hang vai » hang tai, hang hai, hang vi
thu sach » thuat sach, thuoc sach, thu hoach
dua ban » dia ban, cua ban, qua ban
lam dua » lam cua, lam duoc, lam dung
tu sach » su sach, te sach, tu cach
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu sach)) v nang x hoi. hieu viec lam dua ban ((hang vai) or (hang va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) v nang x hoi. hieu viec lam dua ban ((hang vai) OR (hang va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) v nang x hoi. hieu viec lam dua ban ((hang vai) or (hang va)) cuu tre*.