Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trao doi da snippets" » "tao doi da snippets", "trao khoi da snippets", "truan doi da snippets", "trao doi dau snippets", "trao doi dam snippets", "trao doi dan 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: (((("trao doi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trao doi da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trao doi da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trao doi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.