“No results found” message appears for seconds as a global search is applied.?

Dears,

 

I couldn’t figure out why “No results found” message appears for seconds as a global search is applied.

Please, have a look on the attached screenshots.

/customer/servlet/servlet.FileDownload?file=00P6000000elzptEAA

/customer/servlet/servlet.FileDownload?file=00P6000000eluJlEAI

 

/customer/servlet/servlet.FileDownload?file=00P6000000elzckEAA

Thank you

Best

Mahmoud