Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luong cac snippets" » "van luong code snippets", "van duong cac snippets", "van cuong cac snippets", "nang luong cac snippets", "van luong cuoc snippets", "van luong va snippets", "van luong tai snippets"
"using java java slippers" » "using data java slippers", "using java java slippery", "using java java grippers"

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 ("van luong cac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java slippers") OR ("van luong cac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java java slippers ) or ( van luong cac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java slippers") or ("van luong cac snippets"))) or ("locating bug core snippets"))*.