Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai van cay snippets" » "thai van cay snippets", "ha van cay snippets", "hai tan cay snippets", "hai van cau snippets", "hai van bay snippets", "hai van ca 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: (((("hai van cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai van cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai van cay snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai van cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.