Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu so cuu snippets" » "khu do cuu snippets", "khi so cuu snippets", "khu so huu snippets", "khu ho cuu snippets", "khu so cau 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: (((("khu so cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu so cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu so cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu so cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.