Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tang nam doc snippets" » "tang ngam doc snippets", "dang nam doc snippets", "hang nam doc snippets", "tang nam duoc snippets", "tang nam moc snippets", "tang nam do 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 nam doc 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 nam doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang nam doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang nam doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.