How does this sentence 如果你要是查出是谁的话 mean exactly? The full sentence is 如果你要是查出是谁的话, 一定告诉我. It means If you find out who it is, make sure to tell me.
I do know 如果, 如果...的话, 要是 and 你要是...的话 they all mean if.
I more would like to understand how Chinese speaking goes. Because in many Asian languages extra words are added to make the sentence sound complete. By &quot;How Chinese speaking goes&quot;, I mean for example:
给我看看 means let me see. But literally translation in English is Give me look look which sounds so weird but it is a way of speaking in Chinese language.
The same as 你说出来 means that you can speak it out. But literally translation in English is You speak out come and again it sounds so weird but it is a way of speaking in Chinese language.
so 如果你要是查出是谁的话 is literally more like if you, if find out is who, a way of speaking in Chinese language which sounds normal and not weird at all when saying that?
This sentence is an awful mistake, in rhetoric, logic and grammar sense:
如果 and 要是 mean exactly same thing: if.  You use one, not both in a sentence.  Your suspicion is justified.  Majority Chinese speakers won't do this, if any, children maybe, as they like to exaggerate.  BTW, 要是 does not necessarily require 的话 as connector.  要是明天下雨(的话)，我就不去了。