Perhaps you should try some spelling variations:
"tinh luong quan ha kiem soat" » "tinh huong quan ha kiem soat", "dinh luong quan ha kiem soat", "minh luong quan ha kiem soat", "tinh thong quan ha kiem soat", "tinh duong qua ha kiem soat", "tinh luong quan ha kiem toan", "tinh luong quan he kiem soat", "tinh luong quan hoa kiem soat", "tinh luong quan va kiem soat", "tinh luong quan phan kiem soat"
"tinh dung luan ran bien so" » "trinh dung luan ran bien so", "tin dung luan ran bien so", "tinh quang luan ran bien so", "tinh dung luan van bien so", "tinh dung luan san bien so", "tinh dung luan han bien so", "tinh dung luan ra bien so", "tinh dung luan tan bien so", "tinh dung luan trang bien so", "tinh dung luan ran bien doi"

Try widening your search to All Fields.

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 ran bien so") or ("tinh luong quan ha kiem soat"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tinh dung luan ran bien so") OR ("tinh luong quan ha kiem soat")).
• Removing quotes may allow a broader search: (( tinh dung luan ran bien so ) or ( tinh luong quan ha kiem soat )).
• Adding a wildcard symbol may retrieve word variants: (("tinh dung luan ran bien so") or ("tinh luong quan ha kiem soat"))*.