Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"co tac viet snippets" » "co bac viet snippets", "co toc viet snippets", "co tuc viet snippets", "co cac viet snippets", "co ta viet snippets", "co tam viet snippets", "co tac viet slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("co tac viet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co tac viet snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( co tac viet snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co tac viet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.