Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
cac phuong » cac truong
phuong khi » phuong thi, khong khi, phuong mai
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa phau » hoa phan, khoa kham, khoa than
sach toan » hach toan, sach tranh, hoach toan
toan thuc » toan hoc, dan thuc, nhan thuc
khi thong » khi phong, khi tuong, thi thuong
dai thuc » dan thuc, dai thu, dai thua
thuc cac » thuc cach, tuc cac, phuc cac
cac dai » cac dan, cac bai, can dai
vu sach » vu bach, su sach, vu khach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu cac dai thuc hanh khoa phau thong ) or ( vu sach toan thuc cac phuong khi thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cac dai thuc hanh khoa phau thong ) OR ( vu sach toan thuc cac phuong khi thong ))*.