Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao dung doi snippets" » "khao dung doi snippets", "hai dung doi snippets", "hao hung doi snippets", "hao huong doi snippets", "hao dung tai snippets", "hao dung co 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: (((("hao dung doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao dung doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao dung doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao dung doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.