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