Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
hanh hai » thanh hai, nhanh hai, hang hai
dang xay » dang van, van xay
sach thu » sach thue, sach thieu, sach tham
va hanh » van hanh, va thanh, va danh
cac tuc » cac toc, cac tu, cac tac
su sach » so sach, vu sach
mang xa » lang xa, mang may, mang cua
cua tuc » cua duc, cua thuoc, luat tuc
tuc va » thuc va, truc va, tuc xa
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu ((mang xa) or (dang xay)) hoi. hieu viec cac tuc va hanh hai ((cua tu) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu ((mang xa) OR (dang xay)) hoi. hieu viec cac tuc va hanh hai ((cua tu) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: su sach thu ((mang xa) or (dang xay)) hoi. hieu viec cac tuc va hanh hai ((cua tu) or (cua tuc))*.