Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java slippers" » "using data java slippers", "using java java slippery", "using java java grippers"
"vi tran van snippets" » "vi luan van snippets", "vi trang van snippets", "v tran van snippets", "vi than van 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: "((((\"using java java slippers\") OR (\"vi tran van snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java slippers ) OR ( vi tran van snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java slippers") OR ("vi tran van snippets"))) OR ("locating bugs code snippets"))*.