Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pha hanh cua snippets" » "pha hanh code snippets", "pham hanh cua snippets", "phat hanh cua snippets", "nha hanh cua snippets", "pha manh cua snippets", "pha hang cua snippets", "pha hanh sua 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: (((("pha hanh cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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