Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoe cho ca snippets" » "khien cho ca snippets", "khoe cham ca snippets", "hoc cho ca snippets", "khoe cho cac snippets", "khoe cho can snippets", "khoe cho cay 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: (((("khoe cho ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoe cho ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoe cho ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoe cho ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.