Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoan tuan do snippets" » "hoang tuan do snippets", "doan tuan do snippets", "hoan tran do snippets", "hoan toan do snippets", "hoan truan doi snippets", "hoan quan 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: (((("hoan tuan 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: (((("hoan tuan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoan tuan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoan tuan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.