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