Perhaps you should try some spelling variations:
"using cfd code snippets" » "using 3d code snippets", "using c code snippets", "using cfd core snippets", "using cfd code slippers"
"dung thi a snippets" » "dung tai a snippets", "dung tri a snippets", "dung chi a snippets", "dung thi ha snippets", "dung thi ba snippets", "dung thi ra snippets", "dung thi a slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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