Perhaps you should try some spelling variations:
"trinh phan luan va kiem soat" » "trinh han luan va kiem soat", "trinh quan luan va kiem soat", "thanh phan luan va kiem soat", "trinh phap luan va kiem soat", "trinh pham luan va kiem soat", "trinh phan quan va kiem soat", "trinh phan luan va kiem toan", "trinh phan luan van kiem soat", "trinh phan luat va kiem soat", "trinh phan luan van kien soat"
"dinh gian hang va hieu soat" » "dinh gia hang va hieu soat", "dinh giap hang va hieu soat", "tinh gian hang va hieu soat", "dinh gian lang va hieu soat", "dinh gan hang va hieu soat", "dinh gian hang va hieu suat", "dinh gian hang va hieu hoat", "dinh gian hang va hieu luat", "dinh gian hang van hieu soat", "dinh gian hang va dieu soat", "dinh gian hang va hien soat"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("trinh phan luan va kiem soat") or ("dinh gian hang va hieu soat"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("trinh phan luan va kiem soat") OR ("dinh gian hang va hieu soat")).
• Removing quotes may allow a broader search: (( trinh phan luan va kiem soat ) or ( dinh gian hang va hieu soat )).
• Adding a wildcard symbol may retrieve word variants: (("trinh phan luan va kiem soat") or ("dinh gian hang va hieu soat"))*.