Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doi so chung snippets" » "doi ho chung snippets", "doi so nhung snippets", "doi cao chung snippets", "dai so chung snippets", "doi bo chung snippets", "doi co chung snippets", "doi so chung slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("doi so chung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi so chung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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