Perhaps you should try some spelling variations:
bond » bonds
hair » fair
hairm » fairm, harm, hairi
band » bank
grand » brand
chart » charts, charmt, chartt, charit
charters » chartsers, charmters, chartters, chariters, chapters, charter, characters
charmt » charms, charmmt, chartmt, charimt
charmters » charmsers, charmmters, chartmters, charimters, characters, chapters, chambers
heat » head
gharmm » gharmmm, ghartmm, gharimm
har » harm, hart, hari
harmi » harmmi, hartmi, harimi, harm, hari, harms
hard » harmd, hartd, harid
grant » grants

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((bond OR ((hair OR air) OR had)) OR (san OR (band OR grand))) OR land) OR (((((chart OR charmt) OR gharmm) OR heat) OR (((heart OR har) OR ((harmi OR hard) OR (charters OR charmters))) OR hairm)) OR grant)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bond or ((hair or air) or had)) or (san or (band or grand))) or land) or (((((chart OR charmt) or gharmm) or heat) or (((heart or har) or ((harmi or hard) or (charters or charmters))) or hairm)) or grant)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((bond or ((hair or air) or had)) or (san or (band or grand))) or land) or (((((chart OR charmt) or gharmm) or heat) or (((heart or har) or ((harmi or hard) or (charters or charmters))) or hairm)) or grant)) counterinsurgency study ;*.