Perhaps you should try some spelling variations:
thuc doanh » thuc hanh, thuc dan, chuc danh
phau thong » phap thong, khau thong, phan thong
doanh khoa » toan khoa
sach tham » sach nha
canh khoa » anh khoa, xanh khoa, chinh khoa
khoa phau » hoa phan, khoa kham, khoa than
tham thu » tham thuc, nham thu, pham thu
thu canh » thuc hanh, thu cong, thu ban
lanh dan » lanh dao, canh dan, lan dan
dan thuc » dan toc, am thuc
su sach » so sach, vu sach
tu lanh » tu hanh, tu lenh, tu manh
khoa he » hoa he, khoa hoc, khong he

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 tham thu canh khoa phau thong ) or ( tu lanh dan thuc doanh khoa he thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach tham thu canh khoa phau thong ) OR ( tu lanh dan thuc doanh khoa he thong )).
• Adding a wildcard symbol may retrieve word variants: (( su sach tham thu canh khoa phau thong ) or ( tu lanh dan thuc doanh khoa he thong ))*.