Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong anh duc slippers" » "hong anh duc slippers", "dong thanh duc slippers", "hoang anh duc slippers", "dong minh duc slippers", "dong anh duc slippery", "dong anh duc grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong anh duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong anh duc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("dong anh duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.