Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"hap van nhan snippets" » "hap van phan snippets", "hap van thanh snippets", "hap danh nhan snippets", "phap van nhan snippets", "nhap van nhan snippets", "tap van nhan snippets", "hap van nhan 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: (((("hap van nhan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hap van nhan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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