Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhin viet du snippets" » "nhan viet du snippets", "nghia viet du snippets", "chinh viet du snippets", "nhin viet duc snippets", "nhin viet duy snippets", "nhin viet tu 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: (((("nhin viet du 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 viet du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhin viet du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhin viet du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.