Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thong qua do snippets" » "thong quan do snippets", "thong cua do snippets", "thong tu do snippets", "thong qua co snippets", "thong qua da snippets", "thong qua di 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: (((("thong qua 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: (((("thong qua do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong qua do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong qua do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.