Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau do noi snippets" » "cau do noi snippets", "dau co noi snippets", "dao do noi snippets", "dau dao noi snippets", "dau doi noi snippets", "dau do moi 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 do noi 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 do noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau do noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau do noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.