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