Regex - search for 2 words in a string -

Regex - search for 2 words in a string -

i have next lines in text file (simple example, actual text file need work in 7,000 lines long):

the kitchen delivery arrived in afternoon dad helped install kitchen , worked through until midnight later on dad ate cheese sandwich

i trying utilize regular look search lines containing words "dad" , "kitchen". don't have next each other, somewhere on line.

in illustration above, 2nd line should found.

i have tried:

[kitchen] dad

but matches 2nd , 3rd lines, presumably because [kitchen] says find lines containing of characters, rather entire word, , and words containing "dad".

i tried:

[\bkitchen\b] dad

but doesn't work either.

apologies posting question, seemingly @ risk of beingness blocked on stackoverflow asking more questions because questions have not been received, i'm not sure why, seek inquire clear questions...

any advice much appreciated.

thanks

either dad followed kitchen:

dad.*kitchen

or kitchen followed dad:

kitchen.*dad

putting 2 together:

(dad.*kitchen|kitchen.*dad)

also, remember case sensitivity.

regex