Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran hieu cac snippets" » "tran hieu code snippets", "tran hien cac snippets", "tran hiep cac snippets", "trung hieu cac snippets", "tran hieu luc snippets", "tran hieu va snippets", "tran hieu van snippets"
"dung java java snippets" » "dung va java 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: (((("dung java java snippets") or ("tran hieu cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("tran hieu cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( tran hieu cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("tran hieu cac snippets"))) or ("locating bug core snippets"))*.