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