Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trat tu cau snippets" » "tran tu cau snippets", "thuat tu cau snippets", "trat tu cac snippets", "trat cu cau snippets", "trat tu can 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: (((("trat tu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trat tu cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trat tu cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trat tu cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.