Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam nhin can snippets" » "nam nghien can snippets", "nam chien can snippets", "cham nhin can snippets", "nam nhin cau snippets", "nam nhin van snippets", "nam chinh can 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: (((("nam nhin can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam nhin can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam nhin can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam nhin can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.