Perhaps you should try some spelling variations:
"luong java java snippets" » "luong va java snippets", "luong java java slippers"
"dung sang tac snippets" » "dung san tac snippets", "dung dang tac snippets", "dung nang tac snippets", "dung sang tao snippets", "dung sang tai snippets", "dung sang than snippets", "dung sang tac slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("dung sang tac snippets") or ("luong java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung sang tac snippets") OR ("luong java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung sang tac snippets ) or ( luong java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung sang tac snippets") or ("luong java java snippets"))) or ("locating bug code snippets"))*.