Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"con luong cac snippets" » "con luong code snippets", "cong luong cac snippets", "con duong cac snippets", "con cuong cac snippets", "con luong cuoc snippets", "con luong va snippets", "con luong tai 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: (((("con luong cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con luong cac snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( con luong cac snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con luong cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.