Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong vu tu slippers" » "cong cu tu slippers", "cong va tu slippers", "cong tu tu slippers", "cong vu tru slippers", "cong vu thu slippers", "cong vu tu slippery", "cong vu 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 vu 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 vu tu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong vu tu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong vu tu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.