Can't use search function

[Mn1949ford]

First post here. I love this site,first joined 6 yrs ago. Been away awhile. I am ready to try my 1st flathead rebuild. I really could use the info on this site to help me. Very green,here. When I try to use the search function,my keyboard flashes up then poof! Gone! I am using my cell,does that matter? Am I doing something wrong? Any help would be appreciated. Thanks