Perhaps you should try some spelling variations:
phap thong » phap phong, phap chong, phap tieng
sach pham » sach tham, sach phat, sach phap
pham thuc » phap thuc, pham chuc, nham thuc
khoa phap » khoa phau, khoan phai, khong phap
thuc cach » thuoc sach, truoc cach, thuc hanh
cach khoa » bach khoa, cac khoa, cac khoan
pho thong » he thong
toc sach » hoc sach, doc sach, thuoc sach
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
khoa pho » khoa phu, khoa khoa, khoa phau
vu sach » vu bach, su sach, vu khach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( toc sach pham thuc anh khoa phap thong ) or ( vu sach nay thuc cach khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( toc sach pham thuc anh khoa phap thong ) OR ( vu sach nay thuc cach khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( toc sach pham thuc anh khoa phap thong ) or ( vu sach nay thuc cach khoa pho thong ))*.