Perhaps you should try some spelling variations:
hoach dang » hoach bang, hoach mang, hoach quang
khau thong » khau thuong, khap thong, khau tong
dang thuoc » dung thuoc
thuoc bach » thuoc sach, thuoc ban, truc bach
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa khau » khoa kham, khoa phau, khoa chau
bach khoa » anh khoa
sach tri » sach tai, sach tren, sach truc
tue hanh » tu hanh, tuc hanh, tue anh
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach tri tue hanh khoa khau thong ) or ( thu hoach dang thuoc bach khoa khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tri tue hanh khoa khau thong ) OR ( thu hoach dang thuoc bach khoa khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tri tue hanh khoa khau thong ) or ( thu hoach dang thuoc bach khoa khau thong ))*.