Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"dao hai ming snippets" » "dao hai qing snippets", "dao khai minh snippets", "dao thai minh snippets", "dao thai ming snippets", "dai hai ming snippets", "do hai ming snippets", "dao hai ming 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: (((("dao hai ming snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao hai ming snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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