Perhaps you should try some spelling variations:
quang tuan » quang thanh, quan luan
kiem soat » kiem toan
quang cua » quan cua, quang huy, dung cua
kien soat » bien soan, kien hoa, dien hoat
van kiem » va kiem, van hieu, van hien
van kien » van tien, van hien, van chien
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 kiem soat ) or ( tinh ((quang cua) or (quang tuan)) van kien soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh dung luan van kiem soat ) OR ( tinh ((quang cua) OR (quang tuan)) van kien soat )).
• Adding a wildcard symbol may retrieve word variants: (( trinh dung luan van kiem soat ) or ( tinh ((quang cua) or (quang tuan)) van kien soat ))*.