Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ying tang ca snippets" » "ying wang ca snippets", "ying zhang ca snippets", "cong tang ca snippets", "ying tang cua snippets", "ying hang ca snippets", "ying tang ma 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: (((("ying tang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ying tang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ying tang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ying tang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.