Perhaps you should try some spelling variations:
pier » per, pie, mier, pmier, pvier, phier
piero » pero, pieo, miero, pmiero, pviero, phiero
prier » priere, prieur, prior, prmier, prvier, prhier
ier » mier, vier, hier
mhier » mhmier, mhvier, mhhier, mier, maier, hier
meier » memier, mevier, mehier, meiner, meyer, maier
mhhier » mhhmier, mhhvier, mhhhier

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

• Performing a fuzzy search may retrieve terms with similar spellings: sadhana ((((((pier or prier) or piero) or ier) or (((mhier or meier) or mer) or mhhier)) or prier))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sadhana ((((((pier OR prier) OR piero) OR ier) OR (((mhier OR meier) OR mer) OR mhhier)) OR prier)).
• Adding a wildcard symbol may retrieve word variants: sadhana ((((((pier or prier) or piero) or ier) or (((mhier or meier) or mer) or mhhier)) or prier))*.