Perhaps you should try some spelling variations:
"tinh dung luan van tien soat" » "tin dung luan van tien soat", "tinh quang luan van tien soat", "tinh huong luan van tien soat", "tinh dung luan van trien hoat", "tinh dung luan van thien hoat", "tinh dung luan van tien hoa", "tinh dung luan toan tien soat", "tinh dung luan van hieu soat", "tinh dung luan van tuan soat", "tinh dung quan van tien soat"
"trinh dung lan va kiem soat" » "trinh dung lan va kiem toan", "trinh dung land va kiem soat", "trinh dung lam va kiem soat", "trinh dung san va kiem soat", "trinh dung lan van kien soat", "trinh dung luan va kiem soat", "trinh dung lanh va kiem soat", "trinh dung lan 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: (("trinh dung lan va kiem soat") or ("tinh dung luan van tien soat"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("trinh dung lan va kiem soat") OR ("tinh dung luan van tien soat")).
• Removing quotes may allow a broader search: (( trinh dung lan va kiem soat ) or ( tinh dung luan van tien soat )).
• Adding a wildcard symbol may retrieve word variants: (("trinh dung lan va kiem soat") or ("tinh dung luan van tien soat"))*.