Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai hoi doan snippets" » "dai hoi dan snippets", "dai hoi doai snippets", "dai hoa doanh snippets", "dai hoc doan snippets", "dai hai doan snippets", "dai moi doan 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: (((("dai hoi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai hoi doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai hoi doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai hoi doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.