Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"doi viet vu snippets" » "dai viet vu snippets", "hoi viet vu snippets", "oi viet vu snippets", "doi viet tu snippets", "doi viet du snippets", "doi viet va snippets", "doi viet vu slippers"
"locating bug code snippets" » "locating bug code slippers", "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.

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