Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan thi van slippers" » "dan thi van slippers", "doanh tai van slippers", "hoang thi van slippers", "doan thi lan slippers", "doan thi hanh slippers", "doan thi nang slippers", "doan thi van slippery", "doan thi 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: (((("doan thi 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: (((("doan thi van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan thi van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan thi van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.