Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
van doanh » toan doanh, van dong, van thanh
hieu viec » nhieu viec, hieu ve, sieu viet
te sach » toc sach
van cuu » van cau, van chu, van cu
sach ky » sac ky, sach y, sach ty
cuu tre » cua tre, cau tren, cau treo
cac bo » bac bo, cac co
ma hoi » mai hoi, ma hoa, me hoi
cac so » cac co, cac ho, cac o

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ((ma hoi) OR (xa hoi)). hieu viec ((cac so) or (cac bo)) van doanh van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((ma hoi) OR (xa hoi)). hieu viec ((cac so) OR (cac bo)) van doanh van cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ((ma hoi) OR (xa hoi)). hieu viec ((cac so) or (cac bo)) van doanh van cuu tre*".