Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lam san tran snippets" » "lam tan tran snippets", "lam ban tran snippets", "lam dang tran snippets", "lam sang tran snippets", "lam son tran snippets", "luan san tran snippets"

Try widening your search to All Fields.

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