Perhaps you should try some spelling variations:
pier » piero, per, pie, pmier, phier
spier » spiero, sper, spie, spider, spicer, spies, spmier, sphier
khier » hier, khmer, dhier, khmier, khhier
ier » mier, hier
vier » vmier, vhier, vie, ver, mier
vhier » vhmier, vhhier, hier, dhier, thier
pmmier » pmmmier, pmmhier, pommier

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