Perhaps you should try some spelling variations:
"using masked code snippets" » "using waste code snippets", "using based code snippets", "using market codes snippets"
"dung cho can snippets" » "dung cho cac snippets", "dung cho phan snippets", "dung cho 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: (((("using masked code snippets") or ("dung cho can snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using masked code snippets") OR ("dung cho can snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using masked code snippets ) or ( dung cho can snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using masked code snippets") or ("dung cho can snippets"))) or ("locating bug code snippets"))*.