Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"van van hang snippets" » "van van khang snippets", "van van hoang snippets", "van van thang snippets", "van ban hang snippets", "tan van hang snippets", "san van hang snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("van van hang snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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