Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi tu can snippets" » "hoi tu can snippets", "khoi su can snippets", "choi tu can snippets", "khoi tu ban snippets", "khoi tu cac 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 tu can 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 tu can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi tu can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi tu can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.