MAMEWorld Forums - EmuChat - Strikeforce or Strike Force?

I've noticed that there are a bunch of games' names that are displayed as one word on the MAMEUI list, but two words in the history.dat file. And vice versa.

So there have been a bunch of times when I went to search for a game in the search game tab in MAMEUI where I would type the game as one word but the game wouldn't be displayed because it's displayed as two words in the list. And vice versa.

When viewing these games on various websites, some websites have the games listed as one word and other websites have the games listed as two words.

So I was just curious why/how this happens? I'm just using Strike Force or Strikeforce (whichever is the real/right way of spelling the name of the game) as an example. The english spelling norm would spell a game like that as two words and not one. So how did a game like this ever begin to start to get spelled as one word?

I just always found this odd and was curious how something like that spreads to where people spell a game as two words instead of one word. And vice versa.

Any thoughts or opinions about this matter?