Dragon Ball English Japanese Duplicates

For the anime Dragon Ball and Dragon Ball Z, there are two separate versions of both of them, differentiated only by the language (sub or dub, English or Japanese). Normally, there would only be two anime, Dragon Ball (https://www.imdb.com/title/tt0088509/) and Dragon Ball Z (https://www.imdb.com/title/tt0121220/), the original series and its immediate continuation series. I'm not arguing to merge Dragon Ball and Dragon Ball Z, but there are actually 4 versions of these two shows in total. The other two series (https://www.imdb.com/title/tt0280249/ and https://www.imdb.com/title/tt0214341/) are the exact same as the previously listed shows, except they are dubbed over in English, and have less episodes than the Japanese originals due to some episodes being skipped in localization. Is this intentional? If not, I believe this should be fixed, because not only is it redundant, it's clogging the Top 250 charts. Thank you.