Searching opensubtitles.org for this returns two results:
Parks and Recreation (2009) - S05E02 - Soda Tax (1080p AMZN WEBRip x265 Silence).mkv
That same search in opensubtitles.com returns:
No results found
If I change that filename to reflect the year of the episode instead of the first year of the TV series:
Parks and Recreation (2012) - S05E02 - Soda Tax (1080p AMZN WEBRip x265 Silence).mkv
Then opensubtitles.com finds 5 subtitles.
Does .org have some sort of compensation for use of the series year vs. episode year that is missing from .com?