Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec bach » vien bach, viec ban, viec bao
bach nuoc » bach tuoc, sach nuoc, bich ngoc
van hanh » van thanh, ban hanh, van anh
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
va hanh » va thanh, va danh, ban hanh
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty xang xa hoi. hieu viec bach nuoc ((va hanh) or (van hanh)) du ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty xang xa hoi. hieu viec bach nuoc ((va hanh) OR (van hanh)) du ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: so sach ty xang xa hoi. hieu viec bach nuoc ((va hanh) or (van hanh)) du ((cua te) or (cua tu))*.