Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi nam do snippets" » "thai nam do snippets", "thi tam do snippets", "chi nam do snippets", "thi nam dao snippets", "thi nam doi snippets", "thi nam bo 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: (((("thi nam 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: (((("thi nam do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi nam do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi nam do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.