Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"dao viet a snippets" » "so viet a snippets", "o viet a snippets", "dao viet ha snippets", "dao viet ca snippets", "dao viet o snippets"

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

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