Perhaps you should try some spelling variations:
"using java java slippers" » "using data java slippers", "using java java slippery", "using java java grippers"
"vi cong tac snippets" » "vi cong ty snippets", "voi cong tac snippets", "va cong tac snippets", "vu cong tac snippets"
"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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java java slippers") or ("vi cong tac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java slippers") OR ("vi cong tac snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( using java java slippers ) or ( vi cong tac snippets ))) or ( locating bug code snippets ))*.