Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi choi cho snippets" » "thi choi cho snippets", "phi loi cho snippets", "bai choi cho snippets", "phi hoi cho snippets", "phi choi chu snippets", "phi nhoi cho 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: (((("phi choi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi choi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi choi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi choi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.