Perhaps you should try some spelling variations:
"trinh cac code snippets" » "trinh cau code snippets", "trinh chat code snippets", "trinh chao code snippets", "trinh cac cong snippets", "trinh cac co snippets", "trinh cac che snippets", "trinh cac code slippers"
"chung cfd code snippets" » "chung cu code snippets", "chung cua code snippets", "chung chi code snippets", "chung cfd code slippers"
"locating bug code 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: (((("trinh cac code snippets") or ("chung cfd code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh cac code snippets") OR ("chung cfd code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh cac code snippets ) or ( chung cfd code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh cac code snippets") or ("chung cfd code snippets"))) or ("locating bug code snippets"))*.