Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung pham ma slippers" » "dung phan ma slippers", "hung pham ma slippers", "tung pham ma slippers", "dung pham va slippers", "dung pham van slippers", "dung pham tai slippers", "dung pham ma slippery", "dung pham ma grippers"
"locating bug code snippets" » "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: (((("dung pham ma slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung pham ma slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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