Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
doanh khoa » toan khoa
thu doanh » thu oanh, tri doanh, thu hoach
khoa phau » hoa phan, khoa kham, khoa than
cua khach » cua thanh, nha khach
phan tong » phan trong, phan cong, han tong
sach tai » sach bai, sach tham, sach dao
khach co » khac co, khach cong, khac do
su sach » so sach, vu sach
tai thu » thi thu, tai khu, tai thi
tai cua » thai cua, tai cuc, tri cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach tai thu doanh khoa phau thong ) or ( su sach tai cua khach co phan tong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach tai thu doanh khoa phau thong ) OR ( su sach tai cua khach co phan tong )).
• Adding a wildcard symbol may retrieve word variants: (( su sach tai thu doanh khoa phau thong ) or ( su sach tai cua khach co phan tong ))*.