Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"com duoc noi snippets" » "co duoc noi snippets", "com duoi noi snippets", "hoa duoc noi snippets", "com duoc hoi snippets", "com duoc moi snippets", "com duong noi 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 duoc noi 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 duoc noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( com duoc noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("com duoc noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.