Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung java java slippery" » "dung va java slippery", "dung java java slippers"
"trong van thuc snippets" » "trong cac thuc snippets", "trong va thuc snippets", "trong dan thuc snippets", "trong van thu 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: "((((\"dung java java slippery\") OR (\"trong van thuc snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( dung java java slippery ) OR ( trong van thuc snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dung java java slippery") OR ("trong van thuc snippets"))) OR ("locating bug core snippets"))*.