Select where letters are not the same

Hello i need some help on how to select like this here below.
Do i need somthing like not equal or greater than ?
C.
————————————
Ca
Car
Cars ……………………………………<<< this is good
————————————
H.
————————————
Ho
Hom
Home…………………………………. <<< this is good
Home G
Home Ga
Home…
Select where letters are not the same

See original post by tasos55