Perhaps you should try some spelling variations:
nguoi doanh » nguoi dan, nguoi thanh, nguoi lanh
thuoc sinh » hoc sinh, thu sinh, thuoc sach
doanh khoa » toan khoa
phap thong » phap phong, phap chong, pho thong
bai thuoc » ban thuoc, bai hoc, cay thuoc
sinh hoat » sinh hoc, sinh vat
ten nguoi » tren nguoi, den nguoi, dien nguoi
khoa phap » khoa phau, khoan phai, khong phap
sach ten » sach tien, sach tren, sach tet
hoat he » hoa he, hoat ho, thuat he
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu cac bai thuoc sinh hoat he thong ) or ( su sach ten nguoi doanh khoa phap thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu cac bai thuoc sinh hoat he thong ) OR ( su sach ten nguoi doanh khoa phap thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu cac bai thuoc sinh hoat he thong ) or ( su sach ten nguoi doanh khoa phap thong ))*.