Perhaps you should try some spelling variations:
pier » piero, per, pie, pvier, phier
mpier » mpiero, mper, mpie, mpvier, mphier, maier, meier, spier
ier » vier, hier
mier » mvier, mhier, mir
mhhier » mhhvier, mhhhier
prier » prvier, prhier, priere, prieur, prior
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 ier) or (((mier or mpier) or mer) or mhhier)) or (prier or thier)))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sadhana ((((pier OR ier) OR (((mier OR mpier) OR mer) OR mhhier)) OR (prier OR thier))).
• Adding a wildcard symbol may retrieve word variants: sadhana ((((pier or ier) or (((mier or mpier) or mer) or mhhier)) or (prier or thier)))*.