Perhaps you should try some spelling variations:
quang phan » quang phat, quang thanh, quang khanh
quang chan » quang thanh, quang khanh, quang khang
hieu soat » hieu suat, hieu hoat, hieu luat
minh toan » tinh toan, manh toan, minh tuan
toan quan » tran quang, doan quang, van quan
kiem soat » kiem toan
quan ke » quan he, quan ve, quan kien
ke kiem » de kiem, ve kiem, mem kiem
tin » tinh

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 ((quang phan) or (quang chan)) hieu soat ) or ( minh toan quan ke kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung ((quang phan) OR (quang chan)) hieu soat ) OR ( minh toan quan ke kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (( tin dung ((quang phan) or (quang chan)) hieu soat ) or ( minh toan quan ke kiem soat ))*.