Perhaps you should try some spelling variations:
"tinh dung luan van trien hoat" » "tinh dung luan van tien hoa", "trinh dung luan van trien hoat", "tin dung luan van trien hoat", "tinh huong luan van trien hoat", "tinh dung luan van tien hoat", "tinh dung luan va trien hoat", "tinh dung luan van tren hoat", "tinh dung lquan van trien hoat", "tinh dung ltan van trien hoat", "tinh dung lsan van trien hoat", "tinh dung quan van trien hoat", "tinh dung lan van trien hoat"
"tinh quang uan van kiem soat" » "tinh quang tuan van kiem soat", "tinh quang ban van kiem soat", "tinh quang tran van kiem soat", "tinh quang uan van kiem toan", "tinh quang uan va kiem soat", "tinh quang uan van kien soat", "tinh quang uan van hieu soat", "tinh quang quan van kiem soat", "tinh quang tan van kiem soat", "tinh quang san van kiem soat"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("tinh dung luan van trien hoat") or ("tinh quang uan van kiem soat"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tinh dung luan van trien hoat") OR ("tinh quang uan van kiem soat")).
• Removing quotes may allow a broader search: (( tinh dung luan van trien hoat ) or ( tinh quang uan van kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (("tinh dung luan van trien hoat") or ("tinh quang uan van kiem soat"))*.