Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tao luat moi snippets" » "tao luan moi snippets", "tap luat moi snippets", "thai luat moi snippets", "tao luat hoi snippets", "tao luat so snippets", "tao luat dai 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: (((("tao luat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao luat moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao luat moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao luat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.