Perhaps you should try some spelling variations:
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
phau thong » phap thong, khau thong, phan thong
sach nham » sach nha, sach tham, sach han
hanh khoa » hang khoa, anh khoa, hanh hoa
phu thong » pho thong, phap thong, khau thong
khoa phau » hoa phan, khoa kham, khoa than
nham thu » nham thuc, nam thu, pham thu
thu hanh » thuc hanh, thu thanh, thuy hanh
khoa phu » khoa thu, hoa phu, khoe phu
hanh tam » thanh tam, nhanh tam, hanh tram
tam thuc » tham thuc, am thuc, nam thuc
so sach » so sanh, bo sach, co sach
so hanh » so sanh, so danh, co hanh

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 nham thu hanh khoa phu thong ) or ( so hanh tam thuc doanh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach nham thu hanh khoa phu thong ) OR ( so hanh tam thuc doanh khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach nham thu hanh khoa phu thong ) or ( so hanh tam thuc doanh khoa phau thong ))*.