Perhaps you should try some spelling variations:
kham thong » khap thong, khau thong, pham thuong
nguong dan » huong dan
tri thuoc » tri thuc, tri hoc, tin thuoc
thuoc anh » thuoc thanh, thuoc dang, thuoc sach
khoa kham » kho khan, khoa than
pho thong » he thong
sach tri » sach tai, sach tren, sach truc
anh khoa » doanh khoa, hang khoa
sach tin » sach tien, sach kinh, sach tren
dan khoa » dang khoa, da khoa, san khoa
khoa pho » khoa phu, khoa khoa, khoa phau
te sach » toc sach
tu sach » thu sach, su sach, tu cach

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 thuoc anh khoa kham thong ) or ( tu sach tin nguong dan khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tri thuoc anh khoa kham thong ) OR ( tu sach tin nguong dan khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tri thuoc anh khoa kham thong ) or ( tu sach tin nguong dan khoa pho thong ))*.