Perhaps you should try some spelling variations:
luong quang » luong quan, dung quang
quang tuan » quang thanh, quan luan, quang cua
hieu soat » hieu suat, hieu hoat, hieu luat
tin luong » tien luong, tin huong, tin tuong
kien soat » kiem soat, bien soan, dien hoat
van hieu » cao hieu
kien hoa » dien hoa, tien hoa, kien ha
luan » quan, lan

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 luan van hieu soat ) or ( tin luong quang tuan ((kien soat) or (kien hoa)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luan van hieu soat ) OR ( tin luong quang tuan ((kien soat) OR (kien hoa)) )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung luan van hieu soat ) or ( tin luong quang tuan ((kien soat) or (kien hoa)) ))*.