Perhaps you should try some spelling variations:
hang khoan » chung khoan, hoang thoan, khang khuan
khoan phai » khong phai, khoa phau, khoan hoi
phai thong » phap thong, phai tuong, khai thuong
sach tranh » canh tranh
phan thong » phan thuong, phan hong, phan tong
hang khoa » dung khoa
khoa phan » hoa phan, khoa than, khoa phau
sach tri » sach tai, sach tren, sach truc
tue hang » te hang, lue zhang, thuy hang
tranh vu » tran vu, tranh va, tranh cua
so sach » so sanh, bo sach, co sach
te sach » toc sach
vu hang » vu hoang, vu khang, vu dang

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sach tri tue hang khoan phai thong ) or ( te sach tranh vu hang khoa phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach tri tue hang khoan phai thong ) OR ( te sach tranh vu hang khoa phan thong ))*.