Perhaps you should try some spelling variations:
"phenotypic taxon" » "phenotype taxon", "genotypic taxon", "phenotypes taxon", "phenotypic talon", "phenotypic saxon", "phenotypic faxon", "phenotypic tsaxon", "phenotypic tfaxon", "phenotypic taon"
"genotyping axon" » "genotypic axon", "genotyping saxon", "genotyping faxon", "genotyping aon"
"monotypic saxo" » "genotypic saxo", "monotypic sao", "monotypic sano", "monotypic saco"
"monotypic sexo" » "genotypic sexo"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"phenotypic taxon\") OR (\"genotyping axon\"))) OR (((\"monotypic saxo\") OR (\"monotypic sexo\"))))~".
• Removing quotes may allow a broader search: (((( phenotypic taxon ) OR ( genotyping axon ))) OR ((( monotypic saxo ) OR ( monotypic sexo ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("phenotypic taxon") OR ("genotyping axon"))) OR ((("monotypic saxo") OR ("monotypic sexo"))))*.