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