Perhaps you should try some spelling variations:
"luong java java snippets" » "luong va java snippets"
"dong nam code snippets" » "dong ha code snippets", "dong tai code snippets", "dong va code snippets", "dong nam co snippets", "dong lbm code snippets", "dong nam de snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

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: (((("dong nam code snippets") or ("luong java java snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong nam code snippets") OR ("luong java java snippets"))) OR ("locating bug code slippers")).
• Removing quotes may allow a broader search: (((( dong nam code snippets ) or ( luong java java snippets ))) or ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("dong nam code snippets") or ("luong java java snippets"))) or ("locating bug code slippers"))*.