Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac can doan snippets" » "tac chan doan snippets", "tac tan doan snippets", "tac van doan snippets", "tac quan doan snippets", "tac vang doan 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 can doan 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 can doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac can doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac can doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.