Perhaps you should try some spelling variations:
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets"
"vi ung java slippers" » "vi using java slippers", "vi ngu java slippers", "vi ung va slippers", "va ung java slippers", "vi luong java slippers", "vi trung java slippers", "vi ung java slippery", "vi ung java grippers"
"locating bug code snippets" » "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.

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