Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong dung la slippers" » "cuong dung la slippers", "cong dong la slippers", "cong luong la slippers", "cong dung lam slippers", "cong dung lai slippers", "cong dung lao slippers", "cong dung la slippery", "cong dung la 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 dung la 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 dung la slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong dung la slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dung la slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.