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
thuc hang » thuc hanh, thu hang, phuc hang
hang khoa » dung khoa
pho thong » he thong
khoa phau » hoa phan, khoa kham, khoa than
khoa pho » khoa phu, khoa khoa, khoa hoc
sanh tam » canh tam, hanh tam, sang tam
tam thuy » ta thuy, tam thuc, tran thuy
thuy anh » thuy linh
anh khoa » doanh khoa
so sach » bo sach, co sach, hoc sach
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: (( so sach nham thuc hang khoa pho thong ) or ( so sanh tam thuy anh khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sach nham thuc hang khoa pho thong ) OR ( so sanh tam thuy anh khoa phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sach nham thuc hang khoa pho thong ) or ( so sanh tam thuy anh khoa phau thong ))*.