Perhaps you should try some spelling variations:
rand » brand, grand, hand
irand » ibrand, igrand, ihand, brand, iran, grand
grantd » granted, grand
grants » migrants
graintd » grained, gmaintd, ggaintd, grailtd
graind » grained, grains, grand, gmaind, ggaind, graild
rain » main, gain, rail
brain » bmain, bgain, brail
grain » gmain, ggain, grail
ihand » hand
rank » ranks, frank, bank
band » bank, bond
irans » iran, trans, frans
gsand » sand, grand

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 (((((grantd OR grant) or grants) or graintd) or (graind or (rain or brain))) or (irand or ihand))) or had) or rank) or san) or land) or band) or (irans or (gsand or grain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((((rand OR (((((grantd OR grant) OR grants) OR graintd) OR (graind OR (rain OR brain))) OR (irand OR ihand))) OR had) OR rank) OR san) OR land) OR band) OR (irans OR (gsand OR grain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((((rand or (((((grantd OR grant) or grants) or graintd) or (graind or (rain or brain))) or (irand or ihand))) or had) or rank) or san) or land) or band) or (irans or (gsand or grain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((((rand or (((((grantd OR grant) or grants) or graintd) or (graind or (rain or brain))) or (irand or ihand))) or had) or rank) or san) or land) or band) or (irans or (gsand or grain))) counterinsurgency study ;*.