Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong ban sua slippers" » "cong bang sua slippers", "cong san sua slippers", "cong tan sua slippers", "cong ban cua slippers", "cong ban quan slippers", "cong ban sua slippery", "cong ban sua 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 ban sua 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 ban sua slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong ban sua slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong ban sua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.