Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai hoi son snippets" » "dai hoc son snippets", "dai hai son snippets", "dai moi son snippets", "dai hoa son snippets", "dai hoi so 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 son 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 son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai hoi son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai hoi son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.