Perhaps you should try some spelling variations:
"dung nphanh code snippets" » "dung nhan code snippets", "dung phan code snippets", "dung thanh code snippets", "dung npphanh code snippets", "dung npnhanh code snippets", "dung nphanhh code snippets", "dung nphanh core snippets", "dung nphanh code slippers"
"han cfd code snippets" » "phan cfd code snippets", "nhan cfd code snippets", "hanh cfd code snippets", "han cfd core snippets", "han cfd code slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("han cfd code snippets") or ("dung nphanh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han cfd code snippets") OR ("dung nphanh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han cfd code snippets ) or ( dung nphanh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han cfd code snippets") or ("dung nphanh code snippets"))) or ("locating bug code snippets"))*.