Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"den lam tran snippets" » "den lam tan snippets", "den lam trong snippets", "den lam trung snippets", "de lam tran snippets", "den cam tran snippets", "den lay tran snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("den lam tran snippets"))) or ("locating bug core snippets"))~.
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