Need names of all the sound effects from certain games, but how do I contact?

Don't ask me why or how, but after 8 years of trial and error, I finally discovered this site https://soundideas.sourceaudio.com/albums is the site that distributes the sound effects commonly heard in TV shows, cartoons, video games, and movies of all kinds. But if you can help alleviate the time it takes me to find the original sound files utilized in certain Plants vs Zombies games, that would help a lot.

Plants vs Zombies PC, Plants vs Zombies 2: It's About Time (latest version), Plants vs Zombies Garden Warfare 1 and 2.

It's like this: you know the rock crumbling sound Grave Buster makes? It's Sound Ideas, ROCKS, LANDSLIDE - SHORT, LONG, BOULDER & MIXED, AVALANCHE - also heard in the Thomas episode Rusty and the Boulder. The machine gun sound used for the Peashooters' Plant Food power along with it's cartoon popping sound is M60AutomaticMultip PE233801 - also heard for the beehive gun in Conker's Bad Fur Day. And the wood hit sound when a Coffin Zombie's coffin breaks is Hollywoodedge,_Wood_Single_Piece_Fal_PE113701 - pretty much when any chunk of a broken wood object hits any hard surface. But so far, I have yet to find the rocket launch sound used by the Cob Cannon which was also utilized in the online flash game Tank Destroyer 2 when a missile gets launched. And sadly, two months have passed since I asked A Thinking Ape Entertainment what sound effects they used for their game Kingdoms of Heckfire, and they never replied.

So how do I get in touch with PopCap/EA about what sound effects they utilized in the four above games so I can find them from Sound Ideas? The Fire Chomper's Flame Spray sound sounds close enough to the Fire Breather's fire breath in the movie Batman Returns.

P.S, and this way, I can better understand how these sound effects are named and utilized - I.E, foley art. My English is not that good, so E.G, in the Powerpuff Girls flash game Zom-B-Gone, two sounds I originally named "Cartoon go-in" 1 and 2, is when an object gets stuffed into some sort of cavity. But now that I found their original raw files and file names: Sound Ideas Thump Cartoon Heavy Thump (also heard in Bill Nye: Atoms) and Sound Ideas Thump Cartoon Tube Thunk 01, I can better visualize how these sound effects are named, utilized, or cued. These two sound effects are named this way so that events like a cartoon bunny jumping into a hole makes more sense in a cartoon.