Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khen ca ta snippets" » "khien cau ta snippets", "khan cap ta snippets", "when can ta snippets", "khen ca tai snippets", "khen ca tra snippets", "khen cua ta snippets", "khen ca ta 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: (((("khen ca ta snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khen ca ta snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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