Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong dung cong snippets" » "dong dung code snippets", "dong duong cong snippets", "duong dung cong snippets", "cong dung cong snippets", "dong dung trong snippets"
"data using java snippets" » "data using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong dung cong snippets") or ("data using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong dung cong snippets") OR ("data using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong dung cong snippets ) or ( data using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dung cong snippets") or ("data using java snippets"))) or ("locating bug core snippets"))*.