Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu qing he snippets" » "cuu cong he snippets", "cuu tinh he snippets", "cuu nang he snippets", "cuu ling he snippets", "cuu qing chen snippets"
"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: (((("cuu qing he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuu qing he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu qing he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu qing he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.