Perhaps you should try some spelling variations:
luan thong » luan phong, luan tuong, luat thong
chieu sach » chinh sach, chiet tach, chieu sang
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, mot chieu
danh nhan » doanh nhan, thanh nhan, benh nhan
anh nhan » doanh nhan, thanh nhan, benh nhan
cong tap » cuong tap, cong tac, cong tan
doan cau » toan cau, doan cap, doanh chau
doan dau » doan dieu, phan dau, doan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - ((anh nhan) or (danh nhan)) luan thong cong tap ((doan cau) or (doan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - ((anh nhan) OR (danh nhan)) luan thong cong tap ((doan cau) OR (doan dau)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - ((anh nhan) or (danh nhan)) luan thong cong tap ((doan cau) or (doan dau))*.