Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bai con cong snippets" » "bai cong cong snippets", "bai con cuong snippets", "bai bon cong snippets", "bai lon cong snippets", "hai con cong snippets", "tai cong cong 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: (((("bai con cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bai con cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bai con cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bai con cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.