Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"truan doc tinh snippets" » "truan doi tinh snippets", "than doc tinh snippets", "quan doc tinh snippets", "truan doc trinh snippets", "truan dac tinh snippets", "truan loc tinh snippets", "truan doc tinh slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"

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 tinh snippets") 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 tinh snippets") OR ("dung java java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( truan doc tinh snippets ) or ( dung java java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("truan doc tinh snippets") or ("dung java java snippets"))) or ("locating bugs code snippets"))*.