Perhaps you should try some spelling variations:
"tinh huong luan va kiem soat" » "dinh huong luan va kiem soat", "tinh quang luan va kiem soat", "anh huong luan va kiem soat", "tinh huong lan va kiem soat", "tinh cuong luan va kiem soat", "tinh huong loan va kiem soat", "tinh huong luan va kiem toan", "tinh huong luan van kiem soat", "tinh huong luat va kiem soat", "tinh huong luan van kien soat"
"tinh dung gian viet le tuan" » "trinh dung gian viet le tuan", "tin dung gian viet le tuan", "tinh quang gian viet le tuan", "tinh duong gian viet le tuan", "tinh dung giao viet le tuan", "tinh dung giam viet le tuan", "tinh dung gian viet ve tuan", "tinh dung gian viet lao tuan", "tinh dung gian viet lai tuan", "tinh dung gian viet le xuan", "tinh dung gian viet le quang", "tinh dung gian viet le thanh"

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 gian viet le tuan") or ("tinh huong luan va kiem soat"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tinh dung gian viet le tuan") OR ("tinh huong luan va kiem soat"))*.
• Removing quotes may allow a broader search: (( tinh dung gian viet le tuan ) or ( tinh huong luan va kiem soat ))*.