Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan dao do snippets" » "doanh dao do snippets", "doan dau do snippets", "dan dao do snippets", "doan dao o snippets", "doan dao ho snippets", "doan dao dong 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: (((("doan dao do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan dao do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan dao do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan dao do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.