Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung cong code snippets" » "dung trong code snippets", "dung cong cong snippets", "dung cong co snippets", "dung cong che snippets"
"locating bug code slippers" » "locating bung code slippers", "locating bugs code slippers"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code snippets") OR ("dung cong code snippets"))) OR ("locating bug code slippers"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using java code snippets\") OR (\"dung cong code snippets\"))) OR (\"locating bug code slippers\"))".
• Removing quotes may allow a broader search: (((( using java code snippets ) OR ( dung cong code snippets ))) OR ( locating bug code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") OR ("dung cong code snippets"))) OR ("locating bug code slippers"))*.