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"
"viet han va snippets" » "viet phan va snippets", "viet hang va snippets", "viet hoan va snippets", "viet hanh va snippets", "viet nhan va snippets", "viet han va slippers"

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

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