Perhaps you should try some spelling variations:
"su canh thanh cong khi đong luc" » "su canh tranh cong khi đong luc", "su danh thanh cong khi đong luc", "su anh thanh cong khi đong luc", "su canh thanh cong thai đong luc", "su canh thanh khong khi đong luc", "su canh thanh co khi đong luc", "suc canh thanh cong khi đong luc", "su can thanh cong khi đong luc"
"su sach danh cho khi đong luc" » "su sach tranh cho khi đong luc", "su sach dao cho khi đong luc", "su sach dung cho khi đong luc", "so sach danh cho khi đong luc", "vu sach danh cho khi đong luc", "su sach danh co khi đong luc", "su sach danh cho ghi đong luc", "su sach danh cao khai đong luc"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("su sach danh cho khi đong luc") or ("su canh thanh cong khi đong luc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("su sach danh cho khi đong luc") OR ("su canh thanh cong khi đong luc"))*.
• Removing quotes may allow a broader search: (( su sach danh cho khi đong luc ) or ( su canh thanh cong khi đong luc ))*.