While it doesn't include everything ZSR offers, this is a good place to start. Choose different limits depending on your needs, e.g. "Peer Reviewed Journals" or "Videos." Limits by Date and Language are also helpful.
Watch out for variant spellings of names of works, characters, etc.
Example: An article about The Ring of the Nibelung may use the title Der Ring des Nibelungen, even if the article is in English.
Use a * to cut off a word at its stem, e.g. Nibelung*
Type the word AND (or use the second row) if you want to enter more than one word that is not an exact phrase.
ring AND nibelung*
will retrieve the most complete set of matches.
If you can't use a star to search for spelling variants, use OR
brynhildr OR brunnhilde