Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi lang du snippets" » "hoa lang du snippets", "hoi dan du snippets", "hoi lang duc snippets", "hoi nang du snippets", "hoi tang 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: (((("hoi lang 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: (((("hoi lang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi lang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi lang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.