Perhaps you should try some spelling variations:
"using cfd code snippets" » "using 3d code snippets", "using c code snippets"
"dung luan trac snippets" » "dung luan tac snippets", "dung luan tranh snippets", "dung luan thuc snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs 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 ("dung luan trac snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using cfd code snippets") OR ("dung luan trac snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( using cfd code snippets ) or ( dung luan trac snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("using cfd code snippets") or ("dung luan trac snippets"))) or ("locating bug code slippers"))*.