Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
sach khoa » bach khoa, sach nha, anh khoa
phan tong » phan trong, phan cong, han tong
khoa phau » hoa phan, khoa kham, khoa than
xay thuc » cay thuc, day thuc, xa thuc
thuc anh » thuc hanh, thuy anh, thu anh
hoc phan » hoc dan, hoc pho
sanh dai » sinh dai, sanh dan, vanh dai
hoc sach » hoc sinh, hoc cac, hoc anh
anh hoc » sinh hoc, benh hoc, hinh hoc
so sanh » do sanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach xay thuc anh hoc phan tong ) or ( so sanh dai hoc sach khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach xay thuc anh hoc phan tong ) OR ( so sanh dai hoc sach khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach xay thuc anh hoc phan tong ) or ( so sanh dai hoc sach khoa phau thong ))*.