False search hits on author AKAs / aliases

Searching for [Kenneth Maxwell](https://openlibrary.org/search/authors?q=Kenneth+Maxwell) produces hits on author records where there are aliases with the two words, but split across different AKAs e.g. Maxwell Grant & Kenneth Roberts. Such records should not be considered matches.

### Relevant url?
https://openlibrary.org/search/authors?q=Kenneth+Maxwell
https://openlibrary.org/authors/OL220398A/Philip_Jos%C3%A9_Farmer
https://openlibrary.org/authors/OL6976514A/Lester_Dent

### Steps to Reproduce

1. Go to first URL above
2. Do ...

* Actual:
* Expected: Only records where the primary name or a single alias matches are returned.

### Details

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- **Environment (prod/dev/local)?** prod

### Proposal & Constraints

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### Stakeholders
@cdrini