Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using cfd code snippets" » "using 3d code snippets", "using c code snippets"
"dung toan hoc snippets" » "dung doanh hoc snippets", "dung thang hoc snippets", "dung thanh hoc snippets", "dung toan khoa snippets", "dung van hoc snippets", "dung hoa hoc 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 toan hoc snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using cfd code snippets") OR ("dung toan hoc snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using cfd code snippets ) or ( dung toan hoc snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using cfd code snippets") or ("dung toan hoc snippets"))) or ("locating bugs code snippets"))*.