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 anh bo khi đong luc" » "su sach danh bo khi đong luc", "su sach tranh bo khi đong luc", "su sach kinh bo khi đong luc", "so sach anh bo khi đong luc", "vu sach anh bo khi đong luc", "su sach anh co khi đong luc", "su sach anh so khi đong luc", "su sach anh buoc khi đong luc", "su sach anh bo chi đong luc", "su sach anh bo thi 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 anh bo 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 anh bo khi đong luc") OR ("su canh thanh cong khi đong luc"))*.
• Removing quotes may allow a broader search: (( su sach anh bo khi đong luc ) or ( su canh thanh cong khi đong luc ))*.