Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc so cuu snippets" » "luc son cuu snippets", "duc so cuu snippets", "luc so huu snippets", "luc ho cuu snippets", "luc so cau 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 so 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 so cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc so cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc so cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.