Perhaps you should try some spelling variations:
pier » piero, per, mier, pmier, phier
mhier » mier, maier, meier, mhmier, mhhier
pmier » mier, prier, imier, pmmier, pmhier
pero » pedro, per
ier » mier, hier
vier » vmier, vhier, view, vie, ver
thier » thmier, 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 pie) or mhier) or pmier) or pero) or ier) or vier) or thier))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: sadhana ((((((((pier OR pie) OR mhier) OR pmier) OR pero) OR ier) OR vier) OR thier)).
• Adding a wildcard symbol may retrieve word variants: sadhana ((((((((pier or pie) or mhier) or pmier) or pero) or ier) or vier) or thier))*.