Perhaps you should try some spelling variations:
thuc doanh » thuc hanh, thuc dan, chuc danh
doanh khoa » toan khoa
phan thong » phan thuong, phan hong, phan tong
thu thong » thuy thong, thu thang, thu tuong
pham thuc » phap thuc, pham chuc, nham thuc
thuc cach » thuoc sach, truoc cach, thuc hanh
sach bai » sach dao, cac bai, sach xa
bai thuc » bai thuoc, bao thuc, dai thuc
khoa thu » khoa than, hoai thu, ho thu
hoc pham » hoc phan, hoc phat, hoc phap
cach hoa » cach hoan, cach hoc, bach hoa
hoa phan » hoa dan, co phan
tu sach » thu sach, su sach, te sach
tu hoc » te hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach bai thuc doanh khoa thu thong ) or ( tu hoc pham thuc cach hoa phan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach bai thuc doanh khoa thu thong ) OR ( tu hoc pham thuc cach hoa phan thong ))*.