Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using cfd code snippets" » "using 3d code snippets", "using c code snippets", "using cfd code slippers"
"sach dung code snippets" » "sach dung cong snippets", "sach dung co snippets", "sach dung de snippets", "sach dung code slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using cfd code snippets") or ("sach dung code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using cfd code snippets") OR ("sach dung code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using cfd code snippets ) or ( sach dung code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using cfd code snippets") or ("sach dung code snippets"))) or ("locating bugs code snippets"))*.