Perhaps you should try some spelling variations:
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
pho thong » he thong
khoa khoi » khoa hoi, khoa khoa, thoat khoi
sach thu » sach thue, sach thieu, sach tham
thu thuc » thuc thuc, thu thuoc, thue thuc
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » hang khoa
khoa pho » khoa phu, khoa khoa, khoa phau
sach tri » sach tai, sach tren, sach truc
tri thuc » tri tue
su sach » so sach, vu sach
te sach » toc sach
khong » phong

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 thu thuc anh khoa pho thong ) or ( te sach tri thuc doanh khoa khoi khong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach thu thuc anh khoa pho thong ) OR ( te sach tri thuc doanh khoa khoi khong ))*.