Perhaps you should try some spelling variations:
contract documentation » contractor documentation, control documentation, software documentation
documentation 1 » documentation _, documentation a, documentation 2
scarr user » oscarr user, car user
scale user » scale users, scale use, scale laser
1 curtan » _ curtain, _ cartan, _ curtin

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((scarr user) OR (scale user)) contract documentation 1 curtan-metragem~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((scarr user) OR (scale user)) contract documentation 1 curtan-metragem".
• Adding a wildcard symbol may retrieve word variants: ((scarr user) OR (scale user)) contract documentation 1 curtan-metragem*.