Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang so hoa snippets" » "tang son hoa snippets", "tang o hoa snippets", "tang co hoa snippets", "tang do hoa snippets", "tang so ha 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 so hoa 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 so hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang so hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang so hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.