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