Perhaps you should try some spelling variations:
khong quan » thong quan, hong quan, thong quang
tinh khong » tinh khang, tinh huong, benh khong
chien hoat » thien hoat, chien thuat, trien hoat
tinh dung » trinh dung, tin dung, tinh quang
dung quan » dung quang, dung luan, luong quan
kiem soat » kiem toan
hieu hoat » hieu hoa, thien hoat, hieu luat
van chien » van hien, van hieu, van tien
quan van » luan van, quan va, quan luan

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 ((kiem soat) or (hieu hoat)) ) or ( tinh khong quan van chien hoat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung quan tri ((kiem soat) OR (hieu hoat)) ) OR ( tinh khong quan van chien hoat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung quan tri ((kiem soat) or (hieu hoat)) ) or ( tinh khong quan van chien hoat ))*.