Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
phap lua » phap luat, phap luan, phap luu
van doan » van toan, van hoan, van dan
te sach » toc sach
van cuu » van cau, van chu, van cu
ve phap » va phap, de phap, ve phan
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
sach v » sach va, sach y, sach 2

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 v ((nang xa) OR (nang x)) hoi. hieu ve phap lua ((van doan) or (van doanh)) van cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v ((nang xa) OR (nang x)) hoi. hieu ve phap lua ((van doan) OR (van doanh)) van cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v ((nang xa) OR (nang x)) hoi. hieu ve phap lua ((van doan) or (van doanh)) van cuu tre*".