Perhaps you should try some spelling variations:
quang thang » quang thanh, quang khang, quang thong
tinh luong » dinh luong, minh luong, tinh cuong
tinh huong » dinh huong, anh huong
hieu soat » hieu suat, hieu hoat, hieu luat
thang van » tang van, thanh van, thong van
kiem soat » kiem toan
van hieu » cao hieu
van kiem » va kiem, van kien, van hien

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((tinh luong) OR (tinh huong)) luan van hieu soat ) or ( tinh quang thang van kiem soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((tinh luong) OR (tinh huong)) luan van hieu soat ) OR ( tinh quang thang van kiem soat ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((tinh luong) OR (tinh huong)) luan van hieu soat ) or ( tinh quang thang van kiem soat ))*".