Perhaps you should try some spelling variations:
"hanh trinh code snippets" » "canh tranh code snippets", "hanh chinh code snippets", "hanh trinh cong snippets", "hanh trinh co snippets", "hanh trinh cad snippets"
"dung cac co snippets" » "luong cac co snippets", "dung cho co snippets", "dung tai co snippets", "dung cac cong snippets"
"locating bug code snippets" » "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: (((("dung cac co snippets") or ("hanh trinh code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cac co snippets") OR ("hanh trinh code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac co snippets ) or ( hanh trinh code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac co snippets") or ("hanh trinh code snippets"))) or ("locating bug code snippets"))*.