Perhaps you should try some spelling variations:
"dau tranh java snippets" » "dau trinh java snippets", "dau tranh va snippets", "can tranh java snippets", "dau tren java snippets", "dau trong java snippets"
"python using 3d snippets" » "python using 3 snippets", "python using a snippets", "python using _ 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: (((("python using 3d snippets") or ("dau tranh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using 3d snippets") OR ("dau tranh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using 3d snippets ) or ( dau tranh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using 3d snippets") or ("dau tranh java snippets"))) or ("locating bug code snippets"))*.