Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau cua can snippets" » "dai cua can snippets", "day cua can snippets", "cau cua can snippets", "dau cua cac snippets", "dau cua ban snippets", "dau cua dan 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: (((("dau cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau cua can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau cua can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.