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