Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi va he snippets" » "hoi va he snippets", "khi va he snippets", "choi va he snippets", "khoi va che snippets", "khoi va ghe snippets", "khoi va de 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 va he 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 va he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi va he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi va he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.