Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pham hoang c snippets" » "pham hong c snippets", "phap hoan c snippets", "pham cong c snippets", "pham hoang code snippets", "pham hoang cd snippets", "pham hoang _ snippets", "pham hoang b 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: (((("pham hoang c snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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