Perhaps you should try some spelling variations:
"dung cac thuc snippets" » "luong cac thuc snippets", "dung cho thuc snippets", "dung tai thuc snippets", "dung cach thuc snippets", "dung cac thu snippets", "dung can thuc snippets", "dung cac thuc slippers"
"dung dat code snippets" » "dung va code snippets", "dung tai code snippets", "dung rate code snippets", "dung dat de snippets", "dung dat 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: (((("dung cac thuc snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cac thuc snippets") OR ("dung dat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac thuc snippets ) or ( dung dat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac thuc snippets") or ("dung dat code snippets"))) or ("locating bug code snippets"))*.