Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi jie chen snippets" » "thi jie ren snippets", "thi yi chen snippets", "thi lien chen snippets", "thi viet chen snippets", "thi hien 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 jie 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 jie chen snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi jie chen snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi jie chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.