Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dun hang doi snippets" » "dun nang doi snippets", "dung thang doi snippets", "dung khang doi snippets", "dun hang di snippets", "dun hang loi snippets", "dun huong 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: (((("dun hang 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: (((("dun hang doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dun hang doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dun hang doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.