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