Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan anh ho snippets" » "quan hanh ho snippets", "quang anh ho snippets", "tuan anh ho snippets", "quan anh tho snippets", "quan anh hoc snippets", "quan manh ho 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: (((("quan anh ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan anh ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan anh ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan anh ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.