Perhaps you should try some spelling variations:
"dung cog code snippets" » "dung cong code snippets", "dung con code snippets", "dung coc code snippets", "dung cfd code snippets", "dung chog code snippets", "dung congg code snippets", "dung cuag code snippets"
"trinh dung co snippets" » "trinh dung cho snippets", "trinh dung cong snippets", "trinh dung cua 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: (((("trinh dung co snippets") or ("dung cog code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh dung co snippets") OR ("dung cog code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh dung co snippets ) or ( dung cog code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh dung co snippets") or ("dung cog code snippets"))) or ("locating bug code snippets"))*.