Perhaps you should try some spelling variations:
"duong java java snippets" » "duong va java snippets", "duong java java slippers"
"tong cot code snippets" » "tong cong code snippets", "tong hop code snippets", "dong co code snippets", "tong cfd code snippets", "tong cot code slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("duong java java snippets") or ("tong cot code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong java java snippets") OR ("tong cot code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong java java snippets ) or ( tong cot code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong java java snippets") or ("tong cot code snippets"))) or ("locating bug code snippets"))*.