Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hau do snippets" » "thi hai do snippets", "thi ha do snippets", "khi hau do snippets", "thi cau do snippets", "thi dau do snippets", "thi hat do 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 hau 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 hau do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hau do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hau do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.