Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mac dan dong snippets" » "mac van dong snippets", "mac dan dung snippets", "mac dao dong snippets", "cac dan dong snippets", "mat dan dong snippets", "bac dan dong 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 dan dong 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 dan dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mac dan dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mac dan dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.