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"
"dan viet java snippets" » "dan viet va snippets", "danh viet java snippets", "san viet java snippets", "dao viet java snippets"

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

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