Perhaps you should try some spelling variations:
"computers / computer literary / bisacsh" » "computers / computer literacy / bisacsh", "computers / computer literatur / bisacsh", "computers / computers literature / bisacsh"
"computers / computers linear / bisacsh" » "computers / computed linear / bisacsh", "computers / computers fine / bisacsh", "computers / computers learn / bisacsh"
"computers / computing linear / bisacsh" » "computers / computing life / bisacsh", "computers / computing longest / bisacsh", "computers / computational linear / bisacsh"
"computers / computer linear / bisacsh" » "computers / computed linear / bisacsh", "computers / computer lunar / bisacsh", "computers / computer nonlinear / bisacsh"

Try widening your search to All Fields.

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: (("computers / computer literary / bisacsh") OR ((("computers / computer linear / bisacsh") OR ((("computers / computers linear / bisacsh") OR ("computers / computing linear / bisacsh")))))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"computers / computer literary / bisacsh\") or (((\"computers / computer linear / bisacsh\") or (((\"computers / computers linear / bisacsh\") OR (\"computers / computing linear / bisacsh\"))))))".
• Removing quotes may allow a broader search: (( computers / computer literary / bisacsh ) or ((( computers / computer linear / bisacsh ) or ((( computers / computers linear / bisacsh ) OR ( computers / computing linear / bisacsh )))))).
• Adding a wildcard symbol may retrieve word variants: (("computers / computer literary / bisacsh") or ((("computers / computer linear / bisacsh") or ((("computers / computers linear / bisacsh") OR ("computers / computing linear / bisacsh"))))))*.