Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung dan hoc snippets" » "dung dan hoc snippets", "huong dan hoc snippets", "trung dai hoc snippets", "tung van hoc snippets", "tung dan toc snippets", "tung dai hoc 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: (((("tung dan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tung dan hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung dan hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung dan hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.