Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tue han lee snippets" » "tue nhan lee snippets", "te han lee snippets", "tu han lee snippets", "tue han lew snippets", "tue tan lee snippets", "tue shin lee 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: (((("tue han lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tue han lee snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tue han lee snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tue han lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.