Perhaps you should try some spelling variations:
pier » piero, per, pie, pvier, phier
heier » heiler, heider, meier, hevier, hehier
ier » vier, hier
mier » mvier, mhier, mir
mpvier » mpvvier, mpvhier
mhhier » mhhvier, mhhhier
phier » phvier, phhier, prier, dhier, ahier
thier » thvier, thhier, thiers, thiery, trier

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 heier) or ier) or (((mier or mpvier) or mer) or mhhier)) or (phier or thier)))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sadhana (((((pier OR heier) OR ier) OR (((mier OR mpvier) OR mer) OR mhhier)) OR (phier OR thier))).
• Adding a wildcard symbol may retrieve word variants: sadhana (((((pier or heier) or ier) or (((mier or mpvier) or mer) or mhhier)) or (phier or thier)))*.