Perhaps you should try some spelling variations:
"using 3d code snippets" » "using 3 code snippets", "using a code snippets", "using _ code snippets", "using cfd code snippets"
"dung cho code snippets" » "dung cho cong snippets", "dung cfd code snippets", "dung cho con snippets"
"locating bug core snippets" » "locating bug code snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using 3d code snippets") OR ("dung cho code snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using 3d code snippets ) or ( dung cho code snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using 3d code snippets") or ("dung cho code snippets"))) or ("locating bug core snippets"))*.