Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khan cap cua snippets" » "khan ap cua snippets", "than cap cua snippets", "khoan cam cua snippets", "khan cap cuu snippets", "khan ca cua snippets", "khan tap 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: (((("khan cap 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: (((("khan cap cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khan cap cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khan cap cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.