Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"chu duc phap snippets" » "chu duc phan snippets", "chu duc hau snippets", "chu hoc phap snippets", "thu duc phap snippets", "chua duoc phap snippets", "cuu duoc phap snippets", "chu duc phap 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: (((("chu duc phap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu duc phap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("chu duc phap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.