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