Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mac gian hoi snippets" » "bac giang hoi snippets", "dan gian hoi snippets", "tac gia hoi snippets", "mac gian thai snippets", "mac gian ha snippets", "mac gian o 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: (((("mac gian hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mac gian hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("mac gian hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.