Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach nam cao snippets" » "cach lam cao snippets", "cach nao cao snippets", "cach noi cao snippets", "cach nam sao snippets", "cach nam giao 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: (((("cach nam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach nam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach nam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach nam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.