Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hoc hang liu snippets" » "hoc hanh liu snippets", "hoc bang liu snippets", "hoc han liu snippets", "hoc hang tieu snippets", "hoc chang lia snippets", "hoc hang hieu snippets", "hoc hang liu 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: (((("hoc hang liu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc hang liu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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