Can anyone assist me please

I'd like a column of cells to report the instance of a certain word in a
line of text in the column cells to the left

i.e.  Find all instances of "apple" in the cells below

he had a apple
an apple was here
oranges only
three apples here

Even if like in the 4th cell the word is "apples" it should still pick it up

any ideas please ?

thanks