Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc viet van slippers" » "hoc viet van slippers", "thuc viet van slippers", "ngoc viet van slippers", "toc viet nam slippers", "toc viet anh slippers", "toc viet ha slippers", "toc viet van slippery", "toc viet van 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: (((("toc viet van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc viet van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc viet van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc viet van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.