Perhaps you should try some spelling variations:
thuoc tuong » thuoc trong, thuoc tong, thuoc dung
phau thong » phap thong, khau thong, phan thong
doanh khoa » toan khoa
thuc thuoc » thuc thuc, truc thuoc, thu thuoc
tuong khoa » luong khoa, duong khoa, dung khoa
cach thuc » anh thuc, cac thu
hoc doanh » hoa doanh, hoc danh, hoc dan
khoa phau » hoa phan, khoa kham, khoa than
thuc hoc » phuc hoc, thu hoc, thuc uoc
tu cach » tu cac
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: (( tu cach thuc hoc doanh khoa phau thong ) or ( tu cach thuc thuoc tuong khoa he thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach thuc hoc doanh khoa phau thong ) OR ( tu cach thuc thuoc tuong khoa he thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu cach thuc hoc doanh khoa phau thong ) or ( tu cach thuc thuoc tuong khoa he thong ))*.