Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuy do con snippets" » "thuyet do con snippets", "thay doi con snippets", "thuat do con snippets", "thuy do cong snippets", "thuy do son snippets", "thuy do co 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: (((("thuy do con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuy do con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuy do con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuy do con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.