Perhaps you should try some spelling variations:
letteratura greca » literatura graeca, letteratura fra, literatura grega
letteratura sarda » letteratura storia, letteratura sulla, letteratura arte
la letteratura » la litterature, la literatura, e letteratura
grounded done » grounded hope, grounded model, grounded upon
grounde die » ground die, grounded viz
i ground » i group, i groups, i grunde
link e » link a, link 2, link 4

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: (( i ground ((link e) OR (link _)) letteratura greca ) OR ( i ((grounde die) OR (grounded done)) la letteratura sarda )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( i ground ((link e) or (link _)) letteratura greca ) or ( i ((grounde die) OR (grounded done)) la letteratura sarda ))".
• Adding a wildcard symbol may retrieve word variants: (( i ground ((link e) or (link _)) letteratura greca ) or ( i ((grounde die) OR (grounded done)) la letteratura sarda ))*.