Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong dot bai slippers" » "cong mot bai slippers", "cong dong bai slippers", "cong doan bai slippers", "cong doi bai slippers", "cong dot bai slippery", "cong dot bai 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 dot bai 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 dot bai slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong dot bai slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dot bai slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.