Perhaps you should try some spelling variations:
doanh khoan » doanh khoa, doanh hoan, doanh nhan
tren nguoi » ten nguoi, truyen nguoi, trien nguon
nguoi sach » nguoi san, nuoc sach
nuoc doanh » ngoc oanh, nuoc anh, quoc danh
khoan phai » khong phai, khoa phau, khoan hoi
phai thong » phap thong, phai tuong, phan thong
sach tren » sach tien, sach tranh
sach hong » sach huong, sach song, sach rong
thu sach » tu sach, thuat sach, thuoc sach
sanh tri » thanh tri, dinh tri, minh tri
tri nuoc » thi nuoc, tri quoc, tri nguon
hong he » khong he, hong het, hong hue
so sanh » do sanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu sach tren nguoi sach hong he thong ) or ( so sanh tri nuoc doanh khoan phai thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu sach tren nguoi sach hong he thong ) OR ( so sanh tri nuoc doanh khoan phai thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu sach tren nguoi sach hong he thong ) or ( so sanh tri nuoc doanh khoan phai thong ))*.