Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"cao duc tren snippets" » "cao duoc tren snippets", "cao dua tren snippets", "cao duc tien snippets", "dao duc tren snippets", "cao suc tren snippets", "giao duc tren snippets", "cao duc tren 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: (((("cao duc tren snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao duc tren snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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