Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khoi ky cac snippets" » "khoi ky code snippets", "hoi ky cac snippets", "thoi ky cac snippets", "khoi ki cac snippets", "khoi ky cach snippets", "khoi ly cac snippets", "khoi ke cac 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: (((("khoi ky cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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