Perhaps you should try some spelling variations:
"vi luong data slippers" » "vi luong dao slippers", "vi luong vat slippers", "vi luong mat slippers", "dai luong data slippers", "van luong data slippers", "hai luong data slippers", "vi luong data slippery", "vi luong data grippers"
"using a java snippets" » "using _ java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

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