Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"yan hang o2 snippets" » "yan hang code snippets", "yan zhang o2 snippets", "ban hang o2 snippets", "van hang o2 snippets", "yan hang hoa snippets", "yan hang rok snippets", "yan hang ton snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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