Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
tien thuoc » trien thuoc, tin thuoc, bien thuoc
khan thong » khap thong, khau thong, nhan thong
khoa phau » hoa phan, khoa kham, khoa than
sach tien » sach tren, sach thieu
thuoc anh » thuoc thanh, thuoc dang, thuoc sach
sach dai » sach dao, sach bai, sach dat
cac khoa » cac khoan, cac khoi, dac khoa
kho khan » khoa kham, khoa than
tu sach » thu sach, su sach, te sach
dai thu » dai thua, dai thuc, doi thu
thu cac » tu cac, thu xac, thu cuc
bo sach » co sach, hoc sach
anh kho » anh khoa, anh tho, anh cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach dai thu cac khoa phau thong ) or ( bo sach tien thuoc anh kho khan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach dai thu cac khoa phau thong ) OR ( bo sach tien thuoc anh kho khan thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach dai thu cac khoa phau thong ) or ( bo sach tien thuoc anh kho khan thong ))*.