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