Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung cu che snippets" » "nhung cau che snippets", "nhung chu che snippets", "chung cu che snippets", "nhung cuu che snippets", "nhung cua che snippets", "nhung co che 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 cu che 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 cu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung cu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung cu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.