Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung cac mot snippets" » "luong cac mot snippets", "dung cho mot snippets", "dung tai mot snippets", "dung cac mon snippets", "dung cac moi snippets", "dung cac cot 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 mot 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 mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.