Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac phat doc snippets" » "tac pham doc snippets", "tam phat doc snippets", "tan phat doc snippets", "tac chat doc snippets", "tac phap doc snippets", "tac thuat doc 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 phat doc 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 phat doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac phat doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac phat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.