Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thuoc dung » hoc dung, thuy dung
phan tong » phan trong, phan cong, han tong
bai thuoc » ban thuoc, bai hoc, cay thuoc
dung khoa » dung cho
phu thong » pho thong, phap thong, khau thong
xa thuoc » va thuoc, na thuoc, xa thuc
thu sach » thuat sach, thu hoach, khau sach
sach bai » sach dao, cac bai
khoa phu » khoa phau, khoa thu, hoa phu
tu sach » su sach, te sach, tu cach
sach xa » sach dao, sach nha
sach co » sach lo, sach dao, sach cap

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 xa thuoc sach co phan tong ) or ( thu sach bai thuoc dung khoa phu thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach xa thuoc sach co phan tong ) OR ( thu sach bai thuoc dung khoa phu thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach xa thuoc sach co phan tong ) or ( thu sach bai thuoc dung khoa phu thong ))*.