Perhaps you should try some spelling variations:
"phenotypic taxon" » "genotypic taxon", "phenotypes taxon", "phenotypic talon", "phenotypic saxon", "phenotypic faxon", "phenotypic tsaxon", "phenotypic tfaxon", "phenotypic taon"
"phenotype taxon" » "phenotype talon", "phenotype saxon", "phenotype faxon", "genotype taxon", "phenotype tsaxon", "phenotype tfaxon", "phenotype taon"
"genotyping axon" » "genotypic axon", "genotyping saxon", "genotyping faxon", "genotyping 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 (\"phenotype taxon\"))) OR (\"genotyping axon\"))) OR (\"monotypic saxo\"))~".
• Removing quotes may allow a broader search: (((((( phenotypic taxon ) OR ( phenotype taxon ))) OR ( genotyping axon ))) OR ( monotypic saxo ))~.
• Adding a wildcard symbol may retrieve word variants: (((((("phenotypic taxon") OR ("phenotype taxon"))) OR ("genotyping axon"))) OR ("monotypic saxo"))*.