The string you provided appears to be a URL-encoded path or search filter from a manga archiving or hosting site. When decoded, it translates to:
If you are looking for a specific series or need help navigating a particular website using these filters, could you please provide the or the website you are browsing? I can then help you find exactly what you're looking for. The string you provided appears to be a
This indicates you are looking at the within a "Raw Manga" archive, specifically filtered for the "Ecchi" genre. specifically filtered for the "Ecchi" genre.