Perhaps you should try some spelling variations:
pier » piero, per, pie, phier
mier » mer, mir, mhier
pmier » pmer, pmir, pmhier, prier, imier
kper » per, kier, ker
khier » hier, khmer, dhier, khhier
ier » hier
vier » vhier, view, vie, ver
prhier » prhhier, pohier, porthier

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 mier) or kper) or kper) or khier) or ier) or vier) or (pmier or prhier)))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sadhana ((((((((pier OR mier) OR kper) OR kper) OR khier) OR ier) OR vier) OR (pmier OR prhier))).
• Adding a wildcard symbol may retrieve word variants: sadhana ((((((((pier or mier) or kper) or kper) or khier) or ier) or vier) or (pmier or prhier)))*.