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