Perhaps you should try some spelling variations:
khan thong » khap thong, khau thong, nhan thong
thuoc anh » thuoc thanh, thuoc dang, thuoc sach
pho thong » he thong
sach tam » sach tham, sach tai, sach dao
tam thuc » tham thuc, am thuc, nam thuc
thuc ban » thuoc ban, thuc dan, thu ban
anh khoa » doanh khoa, hang khoa
khoa pho » khoa phu, khoa khoa, khoa phau
te sach » toc sach
ho khan » kho khan, ho khoan, hoa khanh
tu sach » thu sach, su sach, tu cach
ban ho » ban pho, ban do, ban co

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 tam thuc ban ho khan thong ) or ( tu sach dung thuoc anh khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tam thuc ban ho khan thong ) OR ( tu sach dung thuoc anh khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tam thuc ban ho khan thong ) or ( tu sach dung thuoc anh khoa pho thong ))*.