Perhaps you should try some spelling variations:
"tinh luan van van trien hoat" » "tinh luan van van tien hoa", "trinh luan van van trien hoat", "binh luan van van trien hoat", "minh luan van van trien hoat", "tinh luan van van tien hoat", "tinh luan van va trien hoat", "tinh luan van van tren hoat", "tinh luan van ban trien hoat", "tinh luan tan van trien hoat", "tinh luan san van trien hoat"
"minh phan xuan tran kiem soat" » "minh pham xuan tran kiem soat", "minh nhan xuan tran kiem soat", "dinh phan xuan tran kiem soat", "minh phan quan tran kiem soat", "minh phan xuat tran kiem soat", "minh phan xuan trang kiem soat", "minh phan xuan toan kiem soat", "minh phan xuan tan kiem soat", "minh phan xuan trang kien soat", "minh phan xuan trinh kiem soat", "minh phan xuan tran kiem toan"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("tinh luan van van trien hoat") or ("minh phan xuan tran kiem soat"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tinh luan van van trien hoat") OR ("minh phan xuan tran kiem soat"))*.
• Removing quotes may allow a broader search: (( tinh luan van van trien hoat ) or ( minh phan xuan tran kiem soat ))*.