Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi xay cao snippets" » "khoi bay cao snippets", "phi xay cao snippets", "noi xay cao snippets", "khoi tay cao snippets", "khoi xa cao snippets", "khoi cay cao 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 xay cao 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 xay cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi xay cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi xay cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.