Perhaps you should try some spelling variations:
rand » brand, band, hand
grand » gbrand, gband, ghand, grant, brand
gsand » sand
gband » band
grad » grade, grid, graw
grada » gradea, grida, grawa, grade, rada, grava
ghada » ghaida, ghana, bhada
chada » chanda, chad, bhada

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 ((gsand or grand) or gband)) or land) or ((((gad or grad) or (ghada or grada)) or ((chada OR ohada) or chata)) or migrants)) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR (hard OR had)) OR ((gsand OR grand) OR gband)) OR land) OR ((((gad OR grad) OR (ghada OR grada)) OR ((chada OR ohada) OR chata)) OR migrants)) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or (hard or had)) or ((gsand or grand) or gband)) or land) or ((((gad or grad) or (ghada or grada)) or ((chada OR ohada) or chata)) or migrants)) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or (hard or had)) or ((gsand or grand) or gband)) or land) or ((((gad or grad) or (ghada or grada)) or ((chada OR ohada) or chata)) or migrants)) counterinsurgency study ;*.