Help with place names; Lubow in Lwow

Hi my Father came to England at the end of WWll as a displaced person, I have been trying for some years along with my brother to find out more about his life before he came here.
I know he which camp he was in prior to coming here, but not much about his forced labour time, I have managed to discover that he worked for the Vereingte Deutsche Kieselgurwerke company until 1944 when I presume the American Army liberated him and he was put in a displaced person camp.
On his D.P Registration record card it says his birthplace is Lubow in Lwow province there is a ' over the O of Lwow, and it gives his last permanent residence as Helm in Lublin province.
However on his certificate in lie of passport it says that he was born at Kuszniszcze in Lubomil.
I do not know which of these is right, are they different spellings of the same place, maybe a British spelling of a Polish place or are they different places altogether.
I would like to send off at some point for his birth certificate assuming there is one left after 79 years and a war.
Any help or advice would be most gratefully received.
Thankyou
Littlemak_uk

It's now in Ukraine probably.

Thankyou for that Grzegorz any ideas about how to get birth certificates from there?

Check here:

jewishgen.org/ShtetlSeeker

and when you already know exactely where it is, look here:

archiwa.gov.pl/?CIDA=378

Thankyou very much Alexandra for your help it is much appreciated. :-)

AAlexandra I have just taken a look at the site you gave me and put in Kuszniszcze which is the only spelling I have of the town and is taken from my Fathers certificate in lieu of passport form.
There were 80 possibles and not one of them was spelt the same way, now I do not know how this should sound when pronounced so I am not sure which if any it could be.
This is such a huge stumbling block for me, I do not know if it was spelt correctly on the form or not.
I am really confused right now.

Thankyou very much Alexandra for your help it is much appreciated. :-)

There were 80 possibilities but all of them near Lwow? See how many of them are in Ukraine or nearby and then you will know.