Perhaps you should try some spelling variations:
"using rate code snippets" » "using waste code snippets", "using data code snippets", "using raw code snippets", "using rate core snippets", "using rate code slippers"
"dung cac trinh snippets" » "dung cac tinh snippets", "dung lap trinh snippets", "dung cac thanh snippets", "luong cac trinh snippets", "dung cho trinh snippets", "dung tai trinh snippets", "dung cac trinh slippers"
"locating bug code snippets" » "locating bug core 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: (((("using rate code snippets") or ("dung cac trinh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using rate code snippets") OR ("dung cac trinh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using rate code snippets ) or ( dung cac trinh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using rate code snippets") or ("dung cac trinh snippets"))) or ("locating bug code snippets"))*.