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