Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ton duc da snippets" » "tran duc da snippets", "tong cuc da snippets", "tinh duc da snippets", "ton duc dai snippets", "ton duc dao snippets", "ton duc dam 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: (((("ton duc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ton duc da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ton duc da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ton duc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.