Perhaps you should try some spelling variations:
"studia linguistics semantics" » "studia linguistic semantics", "studia linguistics phonetics", "studies linguistics semantics", "studi linguistici semantics", "study linguistics semantics"
"studia linguistics grammar" » "studies linguistics grammar", "studi linguistici grammar", "study linguistics grammar"

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

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