Tap the object you want to farm, it'll tell you what parts you need and which relics they drop from.
Tap the relics, it'll show you a table of where they drop, and the percentage odds you'll get them.
Vaulted items are in red, and the date will tell you when they were vaulted. Older items tend to be more valuable. You can filter them out, if you want to. Just tap the Current button up top.
Don't know what all those single letters mean? The three dots up open a list of all the abbreviations used.
Want more features? Just let me know. Want less features? ... uh, that might be tricky.
Regardless, have fun farming!