Fuzzy matching

[avendesora]

Description

Some incremental improvements to fuzzy matching logic for get_references(). Related to this discussion

Checklist:

• I have read the CONTRIBUTING document.
• I have added tests that prove my fix is effective or that my feature works.
• I have run pre-commit locally prior to submission and fixed any errors/warnings.
• I have run tests locally prior to submission and they are passing.
• I have added necessary documentation (if appropriate).
• I have updated the README (if appropriate).
• I have updated the CHANGELOG (if appropriate).
• I have updated the version number (if appropriate).
• I have updated the requirements (if appropriate).