Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi anh tuan slippers" » "doi hanh tuan slippers", "doi canh tuan slippers", "doi sanh tuan slippers", "doi anh quan slippers", "doi anh tran slippers", "doi anh luan slippers", "doi anh tuan slippery", "doi anh tuan 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: (((("doi anh tuan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi anh tuan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi anh tuan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi anh tuan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.