Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac dan he snippets" » "tac danh he snippets", "cac dan he snippets", "tac da he snippets", "tac dan ve snippets", "tac dan de snippets", "tac dan ke 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: (((("tac dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac dan he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac dan he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac dan he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.