Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang su hoc snippets" » "tang suc hoc snippets", "trang su hoc snippets", "dang su hoc snippets", "tang tu hoc snippets", "tang du hoc snippets", "tang so hoc 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: (((("tang su hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang su hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang su hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang su hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.