Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tre can du snippets" » "tre dan du snippets", "tiep can du snippets", "tiem can du snippets", "tre van du snippets", "tre han du snippets", "tre can da 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: (((("tre can du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tre can du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tre can du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tre can du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.