Perhaps you should try some spelling variations:
rand » brand, grand, hand
gsand » grand, gsan, ghand
gan » ganz
gang » ganzg, lang, yang
gainz » gains, ganz, gainsz, mainz
gain » gains, main
gaing » gainsg, maing, gains, going, laing
wang » wing, wan, lang
sand » san, hand

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR bond) OR band) OR bonds) OR (land OR ((gsand OR ((gan OR (gainz OR gain)) OR ((gang OR gaing) OR wang))) OR ((sand OR stand) OR bank)))) counterinsurgency study ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or bond) or band) or bonds) or (land or ((gsand or ((gan or (gainz OR gain)) or ((gang or gaing) or wang))) or ((sand or stand) or bank)))) counterinsurgency study ;~".
• Adding a wildcard symbol may retrieve word variants: ((((rand or bond) or band) or bonds) or (land or ((gsand or ((gan or (gainz OR gain)) or ((gang or gaing) or wang))) or ((sand or stand) or bank)))) counterinsurgency study ;*.