Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
dung khoa » dung cho
pho thong » he thong
khoa phau » hoa phan, khoa kham, khoa than
thuc anh » thuc hanh, thuy anh, thu anh
anh khoa » doanh khoa, hang khoa
khoa pho » khoa phu, khoa khoa, khoa hoc
sach bai » sach dao, cac bai, sach xa
te sach » toc sach
sach va » sach xa, sach ha, sach dao
su sach » so sach, vu sach
tu dung » tuc dung, tu duong, su dung
bai tu » tai tu, mai tu, cai tu

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 va thuc anh khoa pho thong ) or ( su sach bai tu dung khoa phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach va thuc anh khoa pho thong ) OR ( su sach bai tu dung khoa phau thong ))*.