Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tra thi slippers" » "van tri thi slippers", "van tru thi slippers", "dan tra thi slippers", "van tran thi slippers", "van ta thi slippers", "van tra ghi slippers", "van tra thi slippery", "van tra thi 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.

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