Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket dan hoi snippets" » "ket doan hoi snippets", "ke dan hoi snippets", "ket van hoi snippets", "ket dan hoc snippets", "ket dai hoi snippets", "ket dang khoi 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: (((("ket dan 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: (((("ket dan hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket dan hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket dan hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.