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