I got a similar message for another search, but this time it found the first 20 instances. Maybe the previous one had less than 20. I had a case like this some months ago, and then it worked again (maybe after changing dump?).
Traceback (most recent call last): File "C:\Program Files\Pywikipedia\pagegenerators.py", line 1255, in __iter__ for page in self.wrapped_gen: File "C:\Program Files\Pywikipedia\pagegenerators.py", line 1157, in Duplicate FilterPageGenerator for page in generator: File "replace.py", line 259, in __iter__ for entry in self.parser: File "C:\Program Files\Pywikipedia\xmlreader.py", line 313, in new_parse for event, elem in context: File "<string>", line 68, in __iter__ SyntaxError: no element found: line 27487351, column 9 no element found: line 27487351, column 9 20 titles were saved.