Perhaps you should try some spelling variations:
anejo » anejos (Expand Search)
boces » bones (Expand Search), oces (Expand Search), boce (Expand Search)
xvii » xiii (Expand Search), xvi (Expand Search), xii (Expand Search), xviii (Expand Search)
xviii » xiiii (Expand Search), xvii (Expand Search), xiii (Expand Search), viii (Expand Search), xviiii (Expand Search)
xxxxviii » xxxxiiii (Expand Search), xxxxvii (Expand Search), xxxxiii (Expand Search), xxxviii (Expand Search), lxxxiii (Expand Search), xxxxviiii (Expand Search)
xxxiii » lxxxiii (Expand Search), xxiii (Expand Search)
vii » viii (Expand Search)

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: anejo del boces (((xvii or iii) or (xviii or ((xxxiii or xxxxviii) or xxxiii))) or vii)~.
• If you are trying to use Boolean operators, they must be ALL CAPS: anejo del boces (((xvii OR iii) OR (xviii OR ((xxxiii OR xxxxviii) OR xxxiii))) OR vii).
• Adding a wildcard symbol may retrieve word variants: anejo del boces (((xvii or iii) or (xviii or ((xxxiii or xxxxviii) or xxxiii))) or vii)*.