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