Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung dan boa snippets" » "dung dan boa snippets", "huong dan boa snippets", "trung dai boa snippets", "tung dan ba snippets", "tung dan bon snippets", "tung san boa 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 boa 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 boa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung dan boa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung dan boa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.