Perhaps you should try some spelling variations:
tenth » teeth, tench, texth, testh, kenth
tent » text, test, kent
tenti » texti, testi, kenti
benth » beth, bento, bench
problem » problema, problems
problemas » problemaas, problemsas
problemssa » problemassa, problemsssa, problema, problems, problemes

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

• Performing a fuzzy search may retrieve terms with similar spellings: Hilbert's (((tenth OR tent) OR benth) OR tenti) (problem OR (problemas OR problemssa))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "Hilbert's (((tenth OR tent) OR benth) OR tenti) (problem OR (problemas OR problemssa))".
• Adding a wildcard symbol may retrieve word variants: Hilbert's (((tenth OR tent) OR benth) OR tenti) (problem OR (problemas OR problemssa))*.