Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang cua noi snippets" » "mang cua noi snippets", "hang cua noi snippets", "tang luan noi snippets", "tang chua noi snippets", "tang cua hoi snippets", "tang cua moi 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: (((("tang cua 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: (((("tang cua noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang cua noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang cua noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.