Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc dong cuu snippets" » "luu dong cuu snippets", "duc dong cuu snippets", "luc cong cuu snippets", "luc dong cua snippets", "luc song cuu snippets", "luc dong cuc 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: (((("luc dong cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc dong cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc dong cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc dong cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.