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