Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thau xay toi snippets" » "thuat xay toi snippets", "tu xay toi snippets", "phan xay toi snippets", "thau gay thoi snippets", "thau may thoi snippets", "thau tay thoi 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: (((("thau xay toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thau xay toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thau xay toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thau xay toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.