Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dieu tra toc snippets" » "dieu tri toc snippets", "kiem tra toc snippets", "dieu cua toc snippets", "dieu trac hoc snippets", "dieu thac toc snippets", "dieu tra thuc 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: (((("dieu tra 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: (((("dieu tra toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dieu tra toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dieu tra toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.