Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim bach hoi snippets" » "kim bai hoi snippets", "kim anh hoi snippets", "kim bang hoi snippets", "kim sach hoi snippets", "kim bach hoa snippets", "kim bach khoa 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: (((("kim bach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kim bach hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim bach hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim bach hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.