Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han thi toc snippets" » "phan thi toc snippets", "ha thi toc snippets", "dan thi toc snippets", "han thi tac snippets", "han thi voc snippets", "han thi goc 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: (((("han thi 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: (((("han thi toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han thi toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han thi toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.