Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc cuu voi snippets" » "luc cua voi snippets", "luc chua voi snippets", "luc cuu hoi snippets", "luc cuu noi snippets", "luc cuu vai 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 cuu voi 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 cuu voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc cuu voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc cuu voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.