Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc giai cac snippets" » "luc gia cac snippets", "luan giai cac snippets", "nuoc giai cac snippets", "luc gian cac snippets", "luc giai ca snippets", "luc giai bai 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 giai 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: (((("luc giai cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc giai cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc giai cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.