Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai van doi snippets" » "thai van doi snippets", "ha van doi snippets", "hai tan doi snippets", "hai van loi snippets", "hai van noi snippets", "hai van do 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: (((("hai van 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: (((("hai van doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai van doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai van doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.