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