Perhaps you should try some spelling variations:
rank » ranks, frank
ffranks » ffrankss, fffranks
fffranks » fffrankss, ffffranks
sand » stand, band, san
bond » bonds
grant » grants, graint, grandt, irant
graint » grain, grains, gradient
irani » iran, iraqi, rani
gran » grain, grand, iran
grandtdt » graindtdt, granddtdt, irandtdt

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: (((rank OR (sand OR (bank OR had))) OR (bond OR land)) OR (((((grant OR (grant OR ((graint OR geraint) OR irani))) OR gran) OR (ffranks OR fffranks)) OR (graindt OR grandtdt)) OR ghana)) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((rank or (sand or (bank or had))) or (bond or land)) or (((((grant or (grant or ((graint or geraint) or irani))) or gran) or (ffranks OR fffranks)) or (graindt or grandtdt)) or ghana)) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: (((rank or (sand or (bank or had))) or (bond or land)) or (((((grant or (grant or ((graint or geraint) or irani))) or gran) or (ffranks OR fffranks)) or (graindt or grandtdt)) or ghana)) counterinsurgency study ;*.