Perhaps you should try some spelling variations:
"cuong dung co snippets" » "tuong duong co snippets", "ung dung co snippets", "thong dung co snippets", "cuong dung cho snippets", "cuong dung cong snippets", "cuong dung cua snippets"
"toc thieu code snippets" » "toc hieu code snippets", "toc thieu core snippets"
"locating bug code snippets" » "locating bug core 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: (((("toc thieu code snippets") or ("cuong dung co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc thieu code snippets") OR ("cuong dung co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc thieu code snippets ) or ( cuong dung co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc thieu code snippets") or ("cuong dung co snippets"))) or ("locating bug code snippets"))*.