Envato Elements provide a subscription base service where envato market is marketplace to sell individual Items. In envato market there is no subscription service.
Elements is separate than Envato Market (as like themeforest, codecanyon, graphicriver, videohive, audiojungle, photodune ) and not all the items on Envato Market are available on Elements. Here’s the current list of All available Items in Elements, just use search functionality at top to find any specific Item. If you like, you can certainly purchase the Item license individually from Envato Market which will come with 6 months of Author support and just one time purchase payment for lifetime. After 6 month you can renew support (need payment).