Perhaps you should try some spelling variations:
rank » ranks, frank, bank
hand » had, hard
band » bank
gband » gbank
bond » bonds
gsand » sand
gstand » stand, rstand
grand » grant, brand
ghad » ghada, had, chad
grad » grade, graw, gray
grada » gradea, grawa, graya, grade, ghada, grava, gradar, granda, graja
rada » radar, randa, raja
grants » migrants

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((rank or san) or (hand or (band OR bond))) or ((gsand or gstand) or (gband or grand))) or land) or (((ghad or (grad or grid)) or (ghana or (grada or rada))) or grants)) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((rank OR san) OR (hand OR (band OR bond))) OR ((gsand OR gstand) OR (gband OR grand))) OR land) OR (((ghad OR (grad OR grid)) OR (ghana OR (grada OR rada))) OR grants)) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((((rank or san) or (hand or (band OR bond))) or ((gsand or gstand) or (gband or grand))) or land) or (((ghad or (grad or grid)) or (ghana or (grada or rada))) or grants)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: (((((rank or san) or (hand or (band OR bond))) or ((gsand or gstand) or (gband or grand))) or land) or (((ghad or (grad or grid)) or (ghana or (grada or rada))) or grants)) counterinsurgency study ;*.