Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang cac ta slippers" » "dung cac ta slippers", "bang cac ta slippers", "dong cac ta slippers", "dang cac tac slippers", "dang cac tai slippers", "dang cac tap slippers", "dang cac ta slippery", "dang cac ta 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: (((("dang cac ta slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang cac ta slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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