Perhaps you should try some spelling variations:
"chinh viet 1 snippets" » "ninh viet 1 snippets", "trinh viet 1 snippets", "dinh viet 1 snippets", "chinh viet o snippets", "chinh viet 2 snippets", "chinh viet 4 snippets", "chinh viet 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: (((("chinh viet 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: (((("chinh viet 1 snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chinh viet 1 snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chinh viet 1 snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.