Perhaps you should try some spelling variations:
"dong duong code snippets" » "tuong duong code snippets", "cuong duong code snippets", "dong thong code snippets", "dong duong co snippets", "dong duong cong snippets", "dong duong che snippets"
"dung lua cau snippets" » "dung luan cau snippets", "dung luat cau snippets", "dung cua cau snippets", "dung quan cau 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung lua cau snippets") OR ("dong duong code snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( dung lua cau snippets ) or ( dong duong code snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung lua cau snippets") or ("dong duong code snippets"))) or ("locating bug code snippets"))*.