Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"man dao duc snippets" » "van dao duc snippets", "dan dao duc snippets", "mac dao duc snippets", "man giao duc snippets", "man tao duoc snippets", "man dao duc 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: (((("man dao duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("man dao duc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( man dao duc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("man dao duc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.