Perhaps you should try some spelling variations:
"trinh quang luan va kiem soat" » "tinh quang luan va kiem soat", "trinh quan luan va kiem soat", "tranh quang luan va kiem soat", "trinh quang tuan va kiem soat", "trinh quang uan va kiem soat", "trinh quang luan va kiem toan", "trinh quang luat va kiem soat", "trinh quang luan van kien soat"
"anh phuong luan van tien soan" » "anh phuong lan van tien soan", "anh phong luan van tien soan", "anh phuong loan van tien soan", "anh huong luan van tien soan", "anh thuong luan van tien soan", "thanh phuong luan van tien soan", "anh phuong luan van bien soan", "anh phuong luan van tien hoang", "anh phuong luan van thien toan", "anh phuong luan toan tien soan", "anh phuong luan van hieu soan", "anh phuong luan van tuan soan", "anh phuong luat van tien soan"

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: (("trinh quang luan va kiem soat") or ("anh phuong luan van tien soan"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("trinh quang luan va kiem soat") OR ("anh phuong luan van tien soan")).
• Removing quotes may allow a broader search: (( trinh quang luan va kiem soat ) or ( anh phuong luan van tien soan )).
• Adding a wildcard symbol may retrieve word variants: (("trinh quang luan va kiem soat") or ("anh phuong luan van tien soan"))*.