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