Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong li thi slippers" » "cong ti thi slippers", "hong li thi slippers", "cong hai thi slippers", "cong lai thi slippers", "cong li thoi slippers", "cong le thi slippers", "cong li thi slippery", "cong li thi 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 li thi 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 li thi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong li thi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong li thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.