Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phi theo chu snippets" » "phi theo code snippets", "pham theo chu snippets", "thi thao chu snippets", "dai theo chu snippets", "phi theo chieu snippets", "phi cho chu snippets", "phi chao chu 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: (((("phi theo chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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