Perhaps you should try some spelling variations:
hair » air, fair
sand » band, hand
grand » brand
hear » heart, heard, shear
sheardt » sheartdt, shearddt, ssheardt
heat » head
hero » here, zero, her
har » hard, harm, hart
harddt » hardddt, harmddt, hartddt
bharti » bhardti, bharmti, bhartti
haridm » hardidm, harmidm, hartidm
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: ((((bonds OR (hair OR had)) OR (((sand OR stand) OR san) OR (bond OR grand))) OR land) OR ((((gpartt OR hear) OR heat) OR ((((hero OR hero) OR (har OR harddt)) OR (sheardt OR bharti)) OR haridm)) OR grant)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((bonds or (hair or had)) or (((sand OR stand) or san) or (bond or grand))) or land) or ((((gpartt or hear) or heat) or ((((hero or hero) or (har or harddt)) or (sheardt or bharti)) or haridm)) or grant)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((bonds or (hair or had)) or (((sand OR stand) or san) or (bond or grand))) or land) or ((((gpartt or hear) or heat) or ((((hero or hero) or (har or harddt)) or (sheardt or bharti)) or haridm)) or grant)) counterinsurgency study ;*.