"Phil" + "Hestia"...in Greek "love of the hearth" = Philistine.
My understanding is there is a good chance that after Troy when the dark ages came upon Greece the Myceneans moved to Canaan in large numbers.
Although I believe a few had already lived there for some time because "The Way of the Philistines" (the path Moses did not take which is mentioned in the Book Of Exodus) was already in existence (c. 1440 BC).
The only www ref I could find was here:
http://www.freerepublic.com/focus/news/2745507/posts?page=45#45
The Trojan War didn’t take place until centuries after the Exodus, and there is no trace of a Greek Dark Age — the latter results from the conventional pseudochronology of Egypt.