Perhaps you should try some spelling variations:
"genotypic taxon" » "genotipico taxon", "genotyping taxon", "phenotypic taxon", "genotypic talon", "genotypic axon", "genotypic faxon"
"monotypic saxon" » "monotypic salon", "monotypic saxo"
"monotypic sfaxon" » "monotypic faxon"
"monotypic saon" » "monotypic salon", "monotypic sajon", "monotypic sapon"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("genotypic taxon") OR ((((("monotypic saxon") OR ("monotypic sfaxon"))) OR ("monotypic saon"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"genotypic taxon\") OR (((((\"monotypic saxon\") OR (\"monotypic sfaxon\"))) OR (\"monotypic saon\"))))*".
• Removing quotes may allow a broader search: (( genotypic taxon ) OR ((((( monotypic saxon ) OR ( monotypic sfaxon ))) OR ( monotypic saon ))))*.