Perhaps you should try some spelling variations:
dung thuoc » dung hoc
thieu hoat » thien hoat, hieu hoat, trien hoat
thuoc toc » thuoc tong, thuoc tai, thuoc bo
tinh nang » trinh nang, tin nang, tich nang
hien soat » thien hoat, kiem soat, bien soan
nang sat » nang suat, nang phat, nang sang
van hien » van hieu, van tien
sat van » sat va, hat van, hoat van

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tin dung thuoc toc thieu hoat ) or ( tinh nang sat van hien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung thuoc toc thieu hoat ) OR ( tinh nang sat van hien soat ))*.