Perhaps you should try some spelling variations:
viec bach » vien bach, viec ban, viec bao
ban thanh » ban hanh, ban hang
hieu viec » nhieu viec, hieu ve, sieu viet
bach xuc » bach tuoc, bach xuan, bach hue
thu sach » thuat sach, thuoc sach, thu hoach
va thanh » gia thanh, va tinh, le thanh
tu sach » su sach, te sach, tu cach
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
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) OR (thu sach)) ky dang xa hoi. hieu viec bach xuc ((va thanh) or (ban thanh)) va cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky dang xa hoi. hieu viec bach xuc ((va thanh) OR (ban thanh)) va cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ky dang xa hoi. hieu viec bach xuc ((va thanh) or (ban thanh)) va cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) ky dang xa hoi. hieu viec bach xuc ((va thanh) or (ban thanh)) va cuu tre*.