Perhaps you should try some spelling variations:
"dung chung co snippets" » "dung cong co snippets", "dung trung co snippets", "truong chung co snippets", "dung chung cho snippets", "dung chung cu snippets", "dung chong co snippets"
"tang ca code snippets" » "tang cua code snippets", "hang ca code snippets", "tang ma code snippets", "tang cfd code snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tang ca code snippets") or ("dung chung co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang ca code snippets") OR ("dung chung co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang ca code snippets ) or ( dung chung co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang ca code snippets") or ("dung chung co snippets"))) or ("locating bug code snippets"))*.