Using shingle and stop filters

Elastic Stack Elasticsearch
1

I am using shingle and stop filters, trim and filler_token="".

When i run analyze API on a string : "Word1 Word2 StopWord1 StopWord2 Word3 Word4", I get the following SHINGLES which seem to be correct.
i) "Word1 Word2"
ii) "Word2"
iii) "Word3"
iv) "Word3 Word4"

Is there any way to suppress shingles ii) and iii).

2

I have filtered shingles ii) and iii).
When I query using a bool must clause with the same string, i would expect hits that matches either or both shingles i) and iv) only.
Is the expectation correct ? Right now I see hits that match shingles ii) too.

3

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