Perhaps you should try some spelling variations:
quang phan » quang chan, quang phat, quang thanh
tinh tinh » trinh tinh, tinh ninh, tinh binh
phan kiem » phan kien, phan mem, van kiem
kiem soat » kiem toan
phan hieu » van hieu, phan kien, gian hieu
hieu suat » hieu luat, hieu qua
dung ung » dung cong
ung phan » dung phan, nung phan, trung phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh tinh quang phan kiem soat ) or ( tin dung ung phan hieu suat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh tinh quang phan kiem soat ) OR ( tin dung ung phan hieu suat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh tinh quang phan kiem soat ) or ( tin dung ung phan hieu suat ))*.