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