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