Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong nang tu slippers" » "cong ngang tu slippers", "cong lang tu slippers", "cong nong tu slippers", "cong nang du slippers", "cong nang luc slippers", "cong nang tu slippery", "cong nang 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: (((("cong nang 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: (((("cong nang tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong nang tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nang tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.