Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan hoan c snippets" » "phan hoan code snippets", "phap hoan c snippets", "phan hoa c snippets", "pham hoang c snippets", "phan hoan cua snippets", "phan hoan lac snippets", "phan hoang cd 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 c snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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