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