Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
thong cong » trong cong, tong cong, thong thong
danh nhan » doanh nhan, thanh nhan, benh nhan
tan doanh » toan doanh, van doanh, san doanh
doanh cao » doanh co, doanh bao, doanh cho
doc hieu » hoc thieu, hoc hien
anh nhan » doanh nhan, thanh nhan, benh nhan
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) OR (toc thieu)) sach - ((anh nhan) or (danh nhan)) thanh thong cong tan doanh cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) sach - ((anh nhan) OR (danh nhan)) thanh thong cong tan doanh cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) sach - ((anh nhan) or (danh nhan)) thanh thong cong tan doanh cao*".