Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung doi ke snippets" » "nhung don ke snippets", "nhung loi ke snippets", "nhung noi ke snippets", "nhung do ke snippets", "nhung moi ke snippets", "nhung doi de 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: (((("nhung doi ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung doi ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung doi ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung doi ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.