Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chang dam do snippets" » "chang ham do snippets", "hang dam do snippets", "hang dau do snippets", "chang dao do snippets", "chang nam do snippets", "chang dam da 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: (((("chang dam 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: (((("chang dam do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chang dam do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chang dam do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.