Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung tin ve snippets" » "dong tin ve snippets", "luong tin ve snippets", "dung tren ve snippets", "dung tin va snippets", "dung tin viet snippets", "dung tinh ven 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 tin ve 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 tin ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung tin ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tin ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.