Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van da dung slippers" » "van dan dung slippers", "van dat dung slippers", "van da dang slippers", "van dao dung slippers", "van dau dung slippers", "van da dung slippery", "van da dung grippers"
"locating bug code snippets" » "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: (((("van da dung slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( van da dung slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van da dung slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.