Perhaps you should try some spelling variations:
"dong java java snippets" » "dong va java snippets"
"huong cau code slippers" » "thuong chau code slippers", "huong dan code slippers", "huong cua code slippers", "huong cau cong slippers", "huong cau de slippers", "huong cfd code slippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("dong java java snippets") or ("huong cau code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong java java snippets") OR ("huong cau code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong java java snippets ) or ( huong cau code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong java java snippets") or ("huong cau code slippers"))) or ("locating bug code snippets"))*.