Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"truan doc phan slippers" » "truan doi phan slippers", "than doc phan slippers", "quan doc phan slippers", "truan hoc phan slippers", "truan duc phan slippers", "truan doc than slippers", "truan doc phan slippery", "truan doc phan grippers"
"dung java java snippets" » "dung va java 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: (((("truan doc phan slippers") or ("dung java java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("truan doc phan slippers") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( truan doc phan slippers ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan doc phan slippers") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.