Perhaps you should try some spelling variations:
tinh khong » tinh khang, tinh huong, benh khong
tinh dung » trinh dung, tin dung, tinh quang
dung quan » dung quang, dung luan, luong quan
hieu luat » hieu qua
kiem soat » kiem toan
tri hieu » tri lieu, thi hieu, trien hieu
quan van » quan va, quan luan, quan doan
luan » lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh dung quan tri hieu luat ) or ( tinh khong ((quan van) or (luan van)) kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung quan tri hieu luat ) OR ( tinh khong ((quan van) OR (luan van)) kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung quan tri hieu luat ) or ( tinh khong ((quan van) or (luan van)) kiem soat ))*.