Perhaps you should try some spelling variations:
"sara de azufre" » "sara de soufre", "sara e azufre"
"clara de azucar" » "clara e azucar", "clara mae azucar", "clara men azucar", "clara be azucar", "clara me azucar", "clara ae azucar"
"sara de azuar" » "sara de aguiar", "sara de agua", "sara de aguas", "sara e azuar"
"clara d azucar" » "clara b azucar", "clara m azucar", "clara a azucar"

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: (((("clara de azucar") OR ("clara d azucar"))) or ((("sara de azuar") or ("sara de azufre"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("clara de azucar") OR ("clara d azucar"))) OR ((("sara de azuar") OR ("sara de azufre")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"clara de azucar\") OR (\"clara d azucar\"))) or (((\"sara de azuar\") or (\"sara de azufre\"))))".
• Removing quotes may allow a broader search: (((( clara de azucar ) OR ( clara d azucar ))) or ((( sara de azuar ) or ( sara de azufre )))).
• Adding a wildcard symbol may retrieve word variants: (((("clara de azucar") OR ("clara d azucar"))) or ((("sara de azuar") or ("sara de azufre"))))*.