how get combine result from two different search to a timechart

[jackieh00]

I have 2 search

search 1
index=A "testx" | stats count(user) AS total1 by _time

search 2
index=B "testx" | stats count(account) AS total2 by _time

I want a timechart span=1d with count total1, total2, and total1+total2.
I've tried this,
index=A "testx" | stats count(user) AS total1 by _time| appendcols [search index=B "testx" | stats count(account) AS total2 by _time] | eval total = total1 + total2| timechart span=1d count(total1), count(total2), count(total)

but the total only has total2 count. How can I fix this?

[pradeepkumarg]

(index=A "testx" ) OR (index=B "testx")| timechart count(user) AS total1 count(account) AS total2 | eval total=total1+total2

[jackieh00]

Thanks but I total still has total2 count, total1 number is 0.