Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tuc hon snippets" » "doi tac hon snippets", "do tuc hon snippets", "loi tuc hon snippets", "doi tu hon snippets", "doi tuc huong snippets", "doi tuc phong 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: (((("doi tuc hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi tuc hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tuc hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tuc hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.