Perhaps you should try some spelling variations:
thuong lan » thuong han, phuong lan, thuong mai
kiem soat » kiem toan
huong lan » phuong lan, huong dan, huong tran
hien khoa » vien khoa, lieu khoa, men khoa
van kiem » va kiem, van kien, van hieu
van hien » van hieu, van tien
luan » quan

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 ( anh ((huong lan) OR (thuong lan)) van hien khoa ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh dung luan van kiem soat ) OR ( anh ((huong lan) OR (thuong lan)) van hien khoa )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( trinh dung luan van kiem soat ) or ( anh ((huong lan) OR (thuong lan)) van hien khoa ))".
• Adding a wildcard symbol may retrieve word variants: (( trinh dung luan van kiem soat ) or ( anh ((huong lan) OR (thuong lan)) van hien khoa ))*.