Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don nam do snippets" » "dong nam do snippets", "doan nam do snippets", "dan nam do snippets", "don nam dao snippets", "don nam doi snippets", "don nam bo 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: (((("don nam 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: (((("don nam do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don nam do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don nam do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.