Perhaps you should try some spelling variations:
"va huong luan snippets" » "va huong lan snippets", "va cuong luan snippets", "va huong loan snippets", "va thuong luan snippets", "va phuong luan snippets", "va tuong luan snippets", "va huong luan slippers"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets", "using data java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("va huong luan snippets") or ("using data java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va huong luan snippets") OR ("using data java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va huong luan snippets ) or ( using data java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va huong luan snippets") or ("using data java snippets"))) or ("locating bug code snippets"))*.