Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"viet hung va snippets" » "viet huong va snippets", "viet trung va snippets", "viet hung van snippets", "viet hang va snippets", "viet hung va slippers"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets", "using raw java slippers"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"viet hung va snippets\") OR (\"using raw java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( viet hung va snippets ) OR ( using raw java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("viet hung va snippets") OR ("using raw java snippets"))) OR ("locating bugs code snippets"))*.