Perhaps you should try some spelling variations:
"tu can tranh o khi đong luc" » "tu tan tran o khi đong luc", "tu van ranh o khi đong luc", "tu co tranh o khi đong luc", "tu can trang o khi đong luc", "tu can trinh o khi đong luc", "tu can trang do khi đong luc", "tu ban tranh o khi đong luc", "tu cac tranh o khi đong luc", "thu canh tranh o khi đong luc", "tu can tranh bo khi đong luc"
"su canh tranh co khi đong luc" » "su canh trinh co khi đong luc", "su canh tranh cuoc khi đong luc", "su canh tranh cua khi đong luc", "suc canh tranh co khi đong luc", "su can tranh co khi đong luc", "su anh tranh co khi đong luc", "su canh tranh cbo khi 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: (("tu can tranh o khi đong luc") or ("su canh tranh co khi đong luc"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("tu can tranh o khi đong luc") OR ("su canh tranh co khi đong luc")).
• Removing quotes may allow a broader search: (( tu can tranh o khi đong luc ) or ( su canh tranh co khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (("tu can tranh o khi đong luc") or ("su canh tranh co khi đong luc"))*.