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