Perhaps you should try some spelling variations:
rand » brand, sand, rank
irand » ibrand, isand, irank, brand, iran, irani
grand » gbrand, gsand, grank, graind, irand, grawd, brand
ranks » banks
hand » hard
band » bond
grad » grade, grid, graw
gradient » gradeient, gridient, grawient
gran » grain, iran, graw
grant » graint, irant, grawt, grants

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 ranks) or hand) or (had or land)) or ((band or bank) or bonds)) or ((((irand or iranktd) or grad) or (gran OR grand)) or ((gradient or grant) or geraint))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rand OR ranks) OR hand) OR (had OR land)) OR ((band OR bank) OR bonds)) OR ((((irand OR iranktd) OR grad) OR (gran OR grand)) OR ((gradient OR grant) OR geraint))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rand or ranks) or hand) or (had or land)) or ((band or bank) or bonds)) or ((((irand or iranktd) or grad) or (gran OR grand)) or ((gradient or grant) or geraint))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rand or ranks) or hand) or (had or land)) or ((band or bank) or bonds)) or ((((irand or iranktd) or grad) or (gran OR grand)) or ((gradient or grant) or geraint))) counterinsurgency study ;*.