Perhaps you should try some spelling variations:
luan khuan » luan hoan, luan khoa, luan han
tinh luong » tinh huong, dinh luong, minh luong
luong quan » thong quan, duong qua
chien hoat » thien hoat, chien thuat, trien hoat
luan phan » luan van, luan hoan
kiem soat » kiem toan
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung ((luan khuan) OR (luan phan)) kiem soat ) OR ( tinh luong quan van chien hoat ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tin dung ((luan khuan) OR (luan phan)) kiem soat ) or ( tinh luong quan van chien hoat ))~".
• Adding a wildcard symbol may retrieve word variants: (( tin dung ((luan khuan) OR (luan phan)) kiem soat ) or ( tinh luong quan van chien hoat ))*.