Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"che duoc cua snippets" » "che duoc code snippets", "che thuoc cua snippets", "che do cua snippets", "te duoc cua snippets", "che duoc sua snippets", "che nuoc cua snippets", "che doc cua 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: (((("che duoc cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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