Perhaps you should try some spelling variations:
"tinh thuong luan van kiem soat" » "trinh thuong luan van kiem soat", "tinh huong luan van kiem soat", "dinh thuong luan van kiem soat", "tinh thuong lan van kiem soat", "tinh thong luan van kiem soat", "tinh truong luan van kiem soat", "tinh thuong luan van kiem toan", "tinh thuong luan van kien soat", "tinh thuong luan van hieu soat", "tinh thuong luan van hien soat"
"tinh quang tan va kiem soat" » "tinh quang tan va kiem toan", "tinh quang tuan va kiem soat", "tinh quang tran va kiem soat", "tinh quang toan va kiem soat", "tinh quang tan van kien soat", "tinh quang tan van kiem soat", "tinh quang than va 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 thuong luan van kiem soat") or ("tinh quang tan va kiem soat"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tinh thuong luan van kiem soat") OR ("tinh quang tan va kiem soat")).
• Removing quotes may allow a broader search: (( tinh thuong luan van kiem soat ) or ( tinh quang tan va kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (("tinh thuong luan van kiem soat") or ("tinh quang tan va kiem soat"))*.