Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"data dau noi snippets" » "dat dau noi snippets", "dat dai noi snippets", "bat dau noi snippets", "data cau noi snippets", "data dang noi snippets", "data dau cuoi snippets"
"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: (((("data dau noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data dau noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("data dau noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.