Perhaps you should try some spelling variations:
quang luan » quan luan, quang tuan, quang uan
kiem soat » kiem toan
kien soat » bien soan, kien hoa, dien hoat
van kiem » va kiem, van kien, van hieu
lan van » lang van, san van, van van
tan van » tran van, tang van, dang van
tinh » trinh, minh, kinh

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

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