Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc su cau snippets" » "duoc sua cau snippets", "duoc si cau snippets", "luoc su cau snippets", "duoc cu cau snippets", "duoc su cao snippets", "duoc su can 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: (((("duoc su cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc su cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc su cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc su cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.