Crafting recipes can be learned from your feat menu, found in the world, available at new stations, or available once you station a high-tier thrall at that station. If you feel like you're missing a substantial amount of recipes, or stuck in any way, try crafting all of the stations in your inventory menu and checking out their recipe menu. Some stations don't have recipes to help your efforts, so you'll either need to look up how to use them or experiment until you figure it out. If you are confused about a recipe listed online, check what level the feat is learned at. If it says 0, then that recipe is likely found out in the world.