Writing SQL query for a given combination of letters -

i want write sql query wherein fourth letter should 'x' , there should 'm' anywhere in whole word. having list of on 5000 words.

i tried command

where name '___x%m%'

but give me x fourth letter , there m after x, how find names have x fourth letter , have m coming before x?

you can this:

where name '____x%' , name '%m%'

IO