Perhaps you should try some spelling variations:
muong thanh » truong thanh, dong thanh, cong thanh
lang muong » lang tuong, long muong, nang luong
hieu suat » hieu luat, hieu qua
dinh lang » dinh long, dinh rang, dinh quang
kiem soat » kiem toan
van hieu » cao hieu
kim soat » kim loai, kim hoa, kim sao
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh dung luan van hieu suat ) or ( dinh lang muong thanh ((kim soat) or (kiem soat)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh dung luan van hieu suat ) OR ( dinh lang muong thanh ((kim soat) OR (kiem soat)) )).
• Adding a wildcard symbol may retrieve word variants: (( trinh dung luan van hieu suat ) or ( dinh lang muong thanh ((kim soat) or (kiem soat)) ))*.