Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung cung cac snippets" » "dung cung code snippets", "dung chung cac snippets", "dung cong cac snippets", "dung ung cac snippets", "dung cuong cac snippets", "dung cung cap snippets", "dung dung cac snippets"
"data using java snippets" » "data using data snippets"

Try widening your search to All Fields.

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

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