Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong tao lap slippers" » "cong tac lap slippers", "cong tan lap slippers", "cong bao lap slippers", "cong thao lap slippers", "cong tai lap slippers", "cong tao lap slippery", "cong tao lap 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 tao lap 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 tao lap slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong tao lap slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tao lap slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.