Perhaps you should try some spelling variations:
"cong dan trinh snippets" » "cong dan tinh snippets", "cong van trinh snippets", "cong hanh trinh snippets", "cong san trinh snippets", "cong tan trinh snippets", "huong dan trinh snippets", "cong dan trinh slippers"
"dung dung code snippets" » "duong dung code snippets", "ung dung code snippets", "dung ung code snippets", "dung dung cong snippets", "dung dung co snippets", "dung dung de snippets", "dung dung 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: (((("cong dan trinh snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong dan trinh snippets") OR ("dung dung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong dan trinh snippets ) or ( dung dung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dan trinh snippets") or ("dung dung code snippets"))) or ("locating bug code snippets"))*.