Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec bach » vien bach, viec ban, viec bao
ban thanh » ban hang
bach xuc » bach tuoc, bach xuan, bach hue
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
lang xa » lang ha, dang xay, lang van
dang xa » dang xay, dang ha, dang va
cuu tre » cua tre, cau tren, cau treo
va cuu » va cau, va chu, va huu

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 ky ((dang xa) OR (lang xa)) hoi. nhieu viec bach xuc ((ban thanh) or (ban hanh)) va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((dang xa) OR (lang xa)) hoi. nhieu viec bach xuc ((ban thanh) OR (ban hanh)) va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((dang xa) OR (lang xa)) hoi. nhieu viec bach xuc ((ban thanh) or (ban hanh)) va cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((dang xa) OR (lang xa)) hoi. nhieu viec bach xuc ((ban thanh) or (ban hanh)) va cuu tre*.