Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhau so toc snippets" » "nhat so toc snippets", "nha so toc snippets", "nhau ho toc snippets", "nhau so hoc snippets", "nhau co 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: (((("nhau so 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: (((("nhau so toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhau so toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhau so toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.