Perhaps you should try some spelling variations:
thanh hung » thanh huong, thanh tung, thanh trung
hung thuoc » dung thuoc, ung thuoc, khang thuoc
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thuoc xa » thuoc ma, thuoc va, thuoc la
nhan dan » phan dau, gian dan, nhan tai
su bach » vu bach, su sach, huu bach
mai dan » mai tan, mat dan, cai dan
mai van » mai va, hai van, mai quan
va nhan » van nhan, ca nhan, va phan
cuu co » huu co, cua co, cuu mo

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

• Performing a fuzzy search may retrieve terms with similar spellings: su bach ((mai dan) or (mai van)), nghien cuu co hoc thanh hung thuoc xa hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su bach ((mai dan) OR (mai van)), nghien cuu co hoc thanh hung thuoc xa hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: su bach ((mai dan) or (mai van)), nghien cuu co hoc thanh hung thuoc xa hoi va nhan dan*.