Perhaps you should try some spelling variations:
khac thong » khac thuong, khac trong, khap thong
phau thong » phap thong, khau thong, phan thong
sinh khoa » sinh hoc, sinh hoat, anh khoa
khoa khac » khoa kham, khoanh khac, khoa hoc
thai thuc » thai thuy, thai tuc, tham thuc
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa phau » hoa phan, khoa kham, khoa than
thuc hoc » phuc hoc, thu hoc, thuc uoc
cac thai » cac thoi, ca thai, cac thi
tu am » tu nam, tu lam, tu cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu am thuc hoc sinh khoa khac thong ) or ( tu cac thai thuc hanh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu am thuc hoc sinh khoa khac thong ) OR ( tu cac thai thuc hanh khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu am thuc hoc sinh khoa khac thong ) or ( tu cac thai thuc hanh khoa phau thong ))*.