Perhaps you should try some spelling variations:
kham thong » khap thong, khau thong, pham thuong
phau thong » phap thong, khau thong, phan thong
canh khoa » anh khoa, xanh khoa, doanh khoa
khoa phau » hoa phan, khoa than, khoa thu
khoa kham » kho khan, khoa than
thu canh » thuc hanh, thu cong, thu ban
thu lanh » thi lanh, thu anh, thu oanh
thuc dac » thuoc dac, thuc dan, thuc day
dac khoa » da khoa, dai khoa, dau khoa
te sach » toc sach
nha thu » nham thu, nha tu, ha thu
lanh do » lanh dao, lanh co, lanh tho
do thuc » hoc thuc, dan thuc

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 nha thu canh khoa phau thong ) or ( thu lanh do thuc dac khoa kham thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach nha thu canh khoa phau thong ) OR ( thu lanh do thuc dac khoa kham thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach nha thu canh khoa phau thong ) or ( thu lanh do thuc dac khoa kham thong ))*.