Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets", "using raw java slippers"
"den tran van snippets" » "den tuan van snippets", "den thanh van snippets", "dang tran van snippets", "den luan van snippets", "den tran van slippers"

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

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