Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung cau le snippets" » "chung cu le snippets", "nhung bai le snippets", "nhu cau le snippets", "nhung cac le snippets", "nhung cau de snippets", "nhung hau le 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 cau le 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 cau le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung cau le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung cau le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.