Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tao voi snippets" » "doi tac voi snippets", "doi tai voi snippets", "doi tan voi snippets", "doi tao boi snippets", "doi tao hoi snippets", "doi dao voi 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 tao voi 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 tao voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tao voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tao voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.