Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi vi chen snippets" » "thi yi chen snippets", "thi hui chen snippets", "thi jie chen snippets", "thi vui chen snippets", "thi vu chen snippets", "thi va chen 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: (((("thi vi chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi vi chen snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi vi chen snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi vi chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.