Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toan kiem do snippets" » "toan tien do snippets", "toan dien do snippets", "toan kinh do snippets", "toan kiem mon snippets", "toan kiem mot snippets", "toan kien doi 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: (((("toan kiem do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toan kiem do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toan kiem do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toan kiem do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.