Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tre dan toi snippets" » "tre dang toi snippets", "te dan toi snippets", "tre can toi snippets", "tre dan toc snippets", "tre dan thi snippets", "tre van toi 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 dan toi 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 dan toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tre dan toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tre dan toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.