Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi qua ca snippets" » "hoi qua ca snippets", "khoi cua ca snippets", "khai quat ca snippets", "khoi qua cac snippets", "khoi qua cua snippets", "khoi qua cai 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: (((("khoi qua 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: (((("khoi qua ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi qua ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi qua ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.