Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"ngoc toan va snippets" » "ngoc tuan va snippets", "ngoc tan va snippets", "ngoc thanh va snippets", "ngoc doan va snippets", "ngoc tran van snippets", "ngoc toan ban snippets", "ngoc toan va slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("ngoc toan va snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngoc toan va snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc toan va snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc toan va snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.