Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuy den cac snippets" » "thuy dien cac snippets", "thuy dung cac snippets", "thuy dong cac snippets", "thuy dan cac snippets", "thuy de cac 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: (((("thuy den cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuy den cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuy den cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuy den cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.