Perhaps you should try some spelling variations:
quang luan » quan luan, quang tuan, quang uan
dung quang » dang quang, dung quan, luong quang
tien soat » trien hoat, thien hoat, kiem soat
tinh dung » trinh dung, tinh quang, tinh huong
luan tieu » luan thiet
tieu soat » trieu suat, kiem soat, hieu suat
quan van » luan van, quan luan, quan doan
quan va » quan vi, quan ha, luan va

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 ((quan van) or (quan va)) tien soat ) or ( tinh dung quang luan tieu soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung ((quan van) OR (quan va)) tien soat ) OR ( tinh dung quang luan tieu soat )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung ((quan van) or (quan va)) tien soat ) or ( tinh dung quang luan tieu soat ))*.