Perhaps you should try some spelling variations:
rand » brand, grand, hand
grandtd » gbrandtd, ggrandtd, ghandtd, grantdtd, graindtd, granddtd
granddtd » gbranddtd, ggranddtd, ghanddtd, grantddtd, grainddtd, grandddtd
band » bank
bond » bonds
grawd » grand, graw, grad
grade » trade
grawe » grace, graw, grave
gran » grant, grain, grand
ggain » gain, grain, again
rain » brain, gain, rail
grains » gbrains, ggains, grails, grain
gmains » gains, mains

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((rand or hard) or (had or land)) or (band or bond)) or (((((grawd or grade) or (grandtd or granddtd)) or grawe) or (gran or (ggain or (rain or main)))) or (gmains OR grains))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR hard) OR (had OR land)) OR (band OR bond)) OR (((((grawd OR grade) OR (grandtd OR granddtd)) OR grawe) OR (gran OR (ggain OR (rain OR main)))) OR (gmains OR grains))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or hard) or (had or land)) or (band or bond)) or (((((grawd or grade) or (grandtd or granddtd)) or grawe) or (gran or (ggain or (rain or main)))) or (gmains OR grains))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or hard) or (had or land)) or (band or bond)) or (((((grawd or grade) or (grandtd or granddtd)) or grawe) or (gran or (ggain or (rain or main)))) or (gmains OR grains))) counterinsurgency study ;*.