Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi toan tu slippers" » "thi tran tu slippers", "thi hoan tu slippers", "thi loan tu slippers", "thi toan du slippers", "thi toan thuc slippers", "thi toan tu slippery", "thi toan tu grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

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