Perhaps you should try some spelling variations:
quang luan » quan luan, quang tuan, quang uan
tuan quang » tran quang, quan quang, than quang
quang ban » quang binh, quang tuan, quang tran
kiem soat » kiem toan
hieu soat » hieu suat, hieu hoat, hieu luat
ban kiem » bang kiem, van kiem, ban kem
van hieu » cao hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( anh tuan quang ban kiem soat ) or ( tinh quang luan van hieu soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( anh tuan quang ban kiem soat ) OR ( tinh quang luan van hieu soat ))*.