Perhaps you should try some spelling variations:
"monotypic axon" » "monotypic saxon", "monotypic faxon", "monotypic aon"
"monotypic taxon" » "monotypic tsaxon", "monotypic tfaxon", "monotypic taon", "monotypic talon", "monotypic saxon", "monotypic faxon"
"genotypic taxon" » "genotypic tsaxon", "genotypic tfaxon", "genotypic taon", "genotypic talon", "genotypic saxon", "genotypic faxon", "genotipico taxon", "genotyping taxon", "phenotypic taxon"
"monotypic staxon" » "monotypic stsaxon", "monotypic stfaxon", "monotypic staon", "monotypic stalon", "monotypic ssaxon", "monotypic sfaxon", "monotypic saxon"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("monotypic axon") OR ((("monotypic taxon") OR ("genotypic taxon"))))) OR ("monotypic staxon"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"monotypic axon\") OR (((\"monotypic taxon\") OR (\"genotypic taxon\"))))) OR (\"monotypic staxon\"))".
• Removing quotes may allow a broader search: (((( monotypic axon ) OR ((( monotypic taxon ) OR ( genotypic taxon ))))) OR ( monotypic staxon )).
• Adding a wildcard symbol may retrieve word variants: (((("monotypic axon") OR ((("monotypic taxon") OR ("genotypic taxon"))))) OR ("monotypic staxon"))*.