Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi vo cung snippets" » "hoi so cung snippets", "hoi ve cung snippets", "hoi xo cung snippets", "hoi va cung snippets", "hoi co cung snippets", "hoi o cung 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 vo cung 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 vo cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi vo cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi vo cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.