Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong tac cot snippets" » "cong tac code snippets", "cong ty cot snippets", "cong tac co snippets", "cong cac cot snippets", "cong tac chon snippets"
"dung using java snippets" » "dung ung java snippets", "dung sinh java snippets", "dung uong java snippets", "dung 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: (((("cong tac cot snippets") or ("dung using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong tac cot snippets") OR ("dung using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong tac cot snippets ) or ( dung using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tac cot snippets") or ("dung using java snippets"))) or ("locating bug core snippets"))*.