My python code doesnt work and I dont know why

[Welox1]

the code:

pas = input("Enter Password: ")
if pas == "Samer" or "samer":
print("Access Granted!")
print("Eid Mubarak, Samer!!!")
elif pas == "Omar" or "omar":
print("Access Granted!")
print("Eid Mubarak, Omar!!!")
elif pas == "Adina" or "adina":
print("Access Granted!")
print("Eid Mubarak, Adina!!!")
elif pas == "Khaled" or "khaled":
print("Access Granted!")
print("Eid Mubarak, Khaled!!!")
elif pas == "All" or "all" or "toti" or "Toti":
print("Access Granted!")
print("Eid Mubarak, Khaled, Adina, Samer, Omar!!!")
else :
print("Invalid Input.")

thx = input()
if thx == "Multumesc" or "Multumim" or "multumesc" or "multumim" or "Thank you" or "Thank You" or "thank you":
print("No problem! / Nicio problema! -- Ai")
print("Have a nice day! / Sa aveti o zi buna! -- Ai")

-- it has indented spaces and no errors!