Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang ca do snippets" » "hang va do snippets", "nang cao do snippets", "hang tai do snippets", "hang ca dao snippets", "hang cau do snippets", "hang cap do 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: (((("hang ca do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang ca do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang ca do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang ca do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.