Perhaps you should try some spelling variations:
chieu suat » hieu suat, hieu luat, chiet xuat
dien chieu » dien chinh, den hieu, dien chu
binh gian » binh giang, binh giai, tinh gian
gian doan » gian dan, giai doan, gian don
doan dien » toan dien, doan dieu, doan thien
dung dat » dung va, dung tai
huu hieu » huu hiep, thuc hieu, thau hieu
dat huu » dao huu, dai huu, dat hua
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 dat huu hieu qua ) or ( binh gian doan dien chieu suat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung dat huu hieu qua ) OR ( binh gian doan dien chieu suat ))*.