Perhaps you should try some spelling variations:
"argumentacio linguistica" » "documentation linguistic", "segmentation linguistic"
"volumen1 linguistica" » "document linguistic"
"argument linguistics" » "ancient linguistics", "document linguistic", "management linguistic"

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: (("volumen1 linguistica") OR ((("argument linguistics") OR ("argumentacio linguistica")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"volumen1 linguistica\") or (((\"argument linguistics\") OR (\"argumentacio linguistica\"))))".
• Removing quotes may allow a broader search: (( volumen1 linguistica ) or ((( argument linguistics ) OR ( argumentacio linguistica )))).
• Adding a wildcard symbol may retrieve word variants: (("volumen1 linguistica") or ((("argument linguistics") OR ("argumentacio linguistica"))))*.