Perhaps you should try some spelling variations:
kham thong » khap thong, khau thong, pham thuong
khoa kham » kho khan, khoa than
khoan pho » khoan nhoi, khoan phai, khoan hoi
pho thong » he thong
cach dai » cac dai, cac dan, cac bai
dai thuc » dan thuc, dai thu, dai thua
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
thuc cac » thuc cach, tuc cac, phuc cac
tu cach » tu cac
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu cach dai thuc anh khoa kham thong ) or ( su sach dao thuc cac khoan pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cach dai thuc anh khoa kham thong ) OR ( su sach dao thuc cac khoan pho thong ))*.