Perhaps you should try some spelling variations:
"nganh hoa cong snippets" » "thanh hoa cong snippets", "khanh hoa cong snippets", "danh hoa cong snippets", "nganh cua cong snippets", "nganh va cong snippets", "nganh hoa co 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: (((("nganh hoa cong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nganh hoa cong snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nganh hoa cong snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nganh hoa cong snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.