Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau va cu snippets" » "dau ve cu snippets", "dai va cu snippets", "dan va cu snippets", "dau va cau snippets", "dau va chu snippets", "dau va su 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 va cu 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 va cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau va cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau va cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.