Perhaps you should try some spelling variations:
"nhin trong 1 snippets" » "nhan trong 1 snippets", "chinh trong 1 snippets", "nhiem trong 1 snippets", "nhin trong 10 snippets", "nhin trong _ snippets", "nhin trong 2 snippets", "nhin trong 1 slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("nhin trong 1 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhin trong 1 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhin trong 1 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhin trong 1 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.