Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"com dung co snippets" » "cong dung co snippets", "kim dung co snippets", "hoc dung co snippets", "com dung cho snippets", "com dung cong snippets", "com dung cua 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: (((("com dung co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("com dung co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( com dung co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("com dung co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.