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 taron"
"genotyping axon" » "genotypic axon", "genotyping saxon", "genotyping faxon", "genotyping aron"
"genotyping aon" » "genotypic aon"
"monotypic saxo" » "genotypic saxo", "monotypic sao", "monotypic sexo", "monotypic sano"

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 (\"genotyping aon\"))))) OR (\"monotypic saxo\"))~".
• Removing quotes may allow a broader search: (((( phenotypic taxon ) OR ((( genotyping axon ) OR ( genotyping aon ))))) OR ( monotypic saxo ))~.
• Adding a wildcard symbol may retrieve word variants: (((("phenotypic taxon") OR ((("genotyping axon") OR ("genotyping aon"))))) OR ("monotypic saxo"))*.