Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"sach pha ban snippets" » "sach phat ban snippets", "sach phap ban snippets", "sach nha ban snippets", "sach pha san snippets", "sach pha tan snippets", "sach nhat ban snippets", "sach pha ban 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: (((("sach pha ban snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach pha ban snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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