Perhaps you should try some spelling variations:
"tinh dung luan van trien hoat" » "tinh dung luan van tien hoa", "trinh dung luan van trien hoat", "tin dung luan van trien hoat", "tinh quang luan van trien hoat", "tinh dung luan van tien hoat", "tinh dung luan va trien hoat", "tinh dung luan van tren hoat", "tinh dung lan van trien hoat"
"minh tuong quan va kiem soat" » "minh tuan quan va kiem soat", "minh quang quan va kiem soat", "minh truong quan va kiem soat", "minh thong quan va kiem soat", "minh luong quan va kiem soat", "minh tuong quan va kiem toan", "minh tuong quan vi kiem soat", "minh tuong quan ha kiem soat", "minh tuong luan va kiem soat", "minh tuong quan van kien soat"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("tinh dung luan van trien hoat") OR ("minh tuong quan va kiem soat"))~.
• Removing quotes may allow a broader search: (( tinh dung luan van trien hoat ) or ( minh tuong quan va kiem soat ))~.
• Adding a wildcard symbol may retrieve word variants: (("tinh dung luan van trien hoat") or ("minh tuong quan va kiem soat"))*.