Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
sach nham » sach nha, sach tham, sach han
nham thuc » nhan thuc, nam thuc, nham thu
khoa phau » hoa phan, khoa kham, khoa than
khoan pho » khoan nhoi, khoan phai, khoan hoi
pho thong » he thong
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
sach nay » sach hay, sach vay, sach nang
nay thuc » nam thuc, cay thuc, day thuc
thuc cac » thuc cach, tuc cac, phuc cac
te sach » toc sach
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: (( te sach nham thuc anh khoa phau thong ) or ( su sach nay thuc cac khoan pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach nham thuc anh khoa phau thong ) OR ( su sach nay thuc cac khoan pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach nham thuc anh khoa phau thong ) or ( su sach nay thuc cac khoan pho thong ))*.