Perhaps you should try some spelling variations:
dinh luong » dinh duong, dinh huong, dinh cuong
luong quan » thong quan, duong qua
hieu suat » hieu luat, hieu qua
trinh han » trinh quan
han quang » phan quang, hang quang, than quang
quang uan » quang tuan, quang ban, quang tran
kien soat » kiem soat, bien soan, kien hoa
uan kien » xuan kien, quan kien, tuan kien
quan li » quan ly, quan tri
li hieu » ly hieu, le hieu, li hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( dinh luong quan li hieu suat ) or ( trinh han quang uan kien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( dinh luong quan li hieu suat ) OR ( trinh han quang uan kien soat )).
• Adding a wildcard symbol may retrieve word variants: (( dinh luong quan li hieu suat ) or ( trinh han quang uan kien soat ))*.