Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chat ban cho snippets" » "chat ban code snippets", "nhat ban cho snippets", "chat ran cho snippets", "cua ban cho snippets", "chat ban cheo snippets", "chat bang cho snippets", "chat ban co 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: (((("chat ban cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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