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