Perhaps you should try some spelling variations:
tien thuoc » trien thuoc, tin thuoc, bien thuoc
thuoc sinh » hoc sinh, thu sinh, thuoc sach
tham thuoc » pham thuoc, tham thuc, nha thuoc
thuoc dong » thuoc dung, thuoc cong, thuoc dang
sach tien » sach tren, sach thieu
sinh hoat » sinh hoc, sinh vat
pho thong » he thong
sach tham » sach nha
dong khoa » duong khoa, dung khoa, dong hoa
hoat pho » hoat ho, hoc pho, hoa phi
khoa pho » khoa phu, khoa khoa, khoa phau
vu sach » vu bach, su sach, vu khach
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach tien thuoc sinh hoat pho thong ) or ( te sach tham thuoc dong khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach tien thuoc sinh hoat pho thong ) OR ( te sach tham thuoc dong khoa pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( vu sach tien thuoc sinh hoat pho thong ) or ( te sach tham thuoc dong khoa pho thong ))*.