Perhaps you should try some spelling variations:
grant » grants, grandt, irant, trant
gray » ray
trandtd » stranded
grower » growers, grover
gran » grand, iran, tran
graw » grow, raw, draw
rain » brain, gain, rail
grain » gbrain, ggain, grail, brain
gmain » gain, smain

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((grant or hard) or (had or land)) or (bank or bonds)) or ((((gray or trandtd) or ((grade OR trade) or grower)) or (gran or graw)) or ((main or rain) or (gmain or grain)))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((grant OR hard) OR (had OR land)) OR (bank OR bonds)) OR ((((gray OR trandtd) OR ((grade OR trade) OR grower)) OR (gran OR graw)) OR ((main OR rain) OR (gmain OR grain)))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((grant or hard) or (had or land)) or (bank or bonds)) or ((((gray or trandtd) or ((grade OR trade) or grower)) or (gran or graw)) or ((main or rain) or (gmain or grain)))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((grant or hard) or (had or land)) or (bank or bonds)) or ((((gray or trandtd) or ((grade OR trade) or grower)) or (gran or graw)) or ((main or rain) or (gmain or grain)))) counterinsurgency study ;*.