Perhaps you should try some spelling variations:
"transmission patrimoniales onerosas" » "transmisiones patrimoniales onerosas" (Expand Search), "transmision patrimonial onerosas" (Expand Search), "transmisions patrimoniais onerosas" (Expand Search), "transmission patrimoniales tras" (Expand Search)
"transmissions patrimonials onerosas" » "transmisions patrimoniais onerosas" (Expand Search), "transmisiones patrimoniales onerosas" (Expand Search), "transmision patrimonial onerosas" (Expand Search)

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• Performing a fuzzy search may retrieve terms with similar spellings: (("transmission patrimoniales onerosas") OR ("transmissions patrimonials onerosas"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"transmission patrimoniales onerosas\") OR (\"transmissions patrimonials onerosas\"))".
• Removing quotes may allow a broader search: (( transmission patrimoniales onerosas ) OR ( transmissions patrimonials onerosas )).
• Adding a wildcard symbol may retrieve word variants: (("transmission patrimoniales onerosas") OR ("transmissions patrimonials onerosas"))*.