Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau thuy do snippets" » "dau thay do snippets", "dang thuy do snippets", "dieu thuy do snippets", "dau thuyet do snippets", "dau thay doi snippets", "dau thuat do 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 thuy 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: (((("dau thuy do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau thuy do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau thuy do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.