Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"data using java snippets" » "data using data snippets"
"dung cau pham snippets" » "dung chau pham snippets", "dung cu pham snippets", "dung cac pham snippets", "dung cau cham snippets", "dung cau phan snippets", "dung cau phap 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 cau pham snippets") or ("data using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cau pham snippets") OR ("data using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung cau pham snippets ) or ( data using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cau pham snippets") or ("data using java snippets"))) or ("locating bug core snippets"))*.