Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"son cua san snippets" » "song cua san snippets", "con cua san snippets", "san cua san snippets", "son cua ban snippets", "son cua dan snippets", "son ca san snippets", "son cua san 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: (((("son cua san snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son cua san snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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