Perhaps you should try some spelling variations:
"nuoc nhung cau snippets" » "quoc hung cau snippets", "hoc nhung cau snippets", "nuoc vung cau snippets", "nuoc chung cu snippets", "nuoc nhung bai snippets", "nuoc nhu cau snippets"
"dung java java snippets" » "dung va java 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: (((("dung java java snippets") or ("nuoc nhung cau snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("nuoc nhung cau snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( nuoc nhung cau snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("nuoc nhung cau snippets"))) or ("locating bug code snippets"))*.