Some armor and tools are missing after player killed.

Today i am playing minecraft on my windows 10 pc and i worked on my villagers trading hall and by mistake i hit down my villager and suddenly iron golem kills me after a few second when i am respwan i went to my trading hall and get back only my iron armour and some xp but my expensive stuff like diamond sword,diamond pickaxe with fortune 3,power 4and punch 2 bow and some more stuff is gone nothing is there except my armour and i cant get my expensive stuff back please think about it and fix this bug as soon as possible.