Perhaps you should try some spelling variations:
"dung cfd code snippets" » "dung cho code snippets", "dung cua code snippets", "dung co code snippets", "dung cfd core snippets"
"dung cac chat snippets" » "luong cac chat snippets", "dung cho chat snippets", "dung tai chat snippets", "dung cao chat snippets", "dung cac thuat snippets", "dung cac nha snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dung cfd code snippets\") OR (\"dung cac chat snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dung cfd code snippets ) OR ( dung cac chat snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung cfd code snippets") OR ("dung cac chat snippets"))) OR ("locating bug code snippets"))*.