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
thai thuy » thi thuy, thanh thuy, thuat thuy
thuy cach » thuc cach, thuy canh, thuy anh
cach khoa » bach khoa, cac khoa, cac khoan
khoa phau » hoa phan, khoa kham, khoa than
tham thuc » nham thuc, pham thuc, tam thuc
khoa toan » khoa than, hoa toan, khoa luan
ban thai » ban than, ban thi, ban tai
can tham » van tham, chuan tham, chon tham
thu ban » thu hang
tu can » tu ban, tu cac, thu canh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu ban thai thuy cach khoa phau thong ) or ( tu can tham thuc doanh khoa toan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu ban thai thuy cach khoa phau thong ) OR ( tu can tham thuc doanh khoa toan thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu ban thai thuy cach khoa phau thong ) or ( tu can tham thuc doanh khoa toan thong ))*.