Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran quy do snippets" » "tran duy do snippets", "tran quoc do snippets", "tran thuy do snippets", "tran quy don snippets", "tran quy mo 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: (((("tran quy 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: (((("tran quy do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran quy do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran quy do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.