Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh kiem do snippets" » "anh kien do snippets", "khanh kiem do snippets", "nganh kiem do snippets", "anh kiem mon snippets", "anh kiem mot snippets", "anh 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: (((("anh 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: (((("anh kiem do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh kiem do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh kiem do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.