Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan hoan de snippets" » "phan hoan code snippets", "phap hoan de snippets", "phan hoa de snippets", "pham hoang de snippets", "phan hoang de snippets", "phan toan de snippets", "phan hoang le snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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