Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc toan dam snippets" » "hoc tan dam snippets", "hop toan dam snippets", "hoa toan dam snippets", "hoc toan ban snippets", "hoc toan tap snippets", "hoc toan cao snippets"

Try widening your search to All Fields.

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