Perhaps you should try some spelling variations:
thuoc bach » thuoc sach, thuoc ban, truc bach
thuoc benh » hoc benh, thuoc ban, thuoc sinh
benh khong » benh kho
tri thuoc » tri thuc, tri hoc, tin thuoc
bach khoa » anh khoa
thu trong » thuc trong, thue trong, thuy trong
sanh tri » thanh tri, dinh tri, minh tri
khoa thu » khoa than, hoai thu, ho thu
khac tri » khac trai, khac thi, khac triet
khong he » khong khi, hong ha, khong _
so sanh » do sanh
vu khac » vu kham, vu khanh, bui khac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( so sanh tri thuoc bach khoa thu trong ) or ( vu khac tri thuoc benh khong he thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( so sanh tri thuoc bach khoa thu trong ) OR ( vu khac tri thuoc benh khong he thong )).
• Adding a wildcard symbol may retrieve word variants: (( so sanh tri thuoc bach khoa thu trong ) or ( vu khac tri thuoc benh khong he thong ))*.