Perhaps you should try some spelling variations:
khau thong » khau thuong, khap thong, khau tong
thuc bach » truc bach, thuc cach, thuoc sach
phu thong » pho thong, phap thong, phan thong
khoa khau » khoa kham, khoa phau, khoa chau
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
khoa phu » khoa phau, khoa thu, hoa phu
sach hoc » cach hoc, sach hoi, mach hoc
hoc thuc » hoc huu
su sach » so sach, vu sach
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: (( su sach dao thuc anh khoa phu thong ) or ( te sach hoc thuc bach khoa khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach dao thuc anh khoa phu thong ) OR ( te sach hoc thuc bach khoa khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( su sach dao thuc anh khoa phu thong ) or ( te sach hoc thuc bach khoa khau thong ))*.