Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban nhac toc snippets" » "ban nhan toc snippets", "ban nha toc snippets", "bang nhan toc snippets", "ban thac toc snippets", "ban nha hoc snippets", "ban cac toc 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: (((("ban nhac toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban nhac toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban nhac toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban nhac toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.