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

You may be able to get more results by adjusting your search query.

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