Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mac cua moi snippets" » "mach cua moi snippets", "mac ca moi snippets", "ma cua moi snippets", "mac cua mot snippets", "mac cua hoi 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 cua moi 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 cua moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mac cua moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mac cua moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.