Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc doi dan slippers" » "cuoc doi dan slippers", "quoc hoi dan slippers", "luoc doi dan slippers", "quoc doi ban slippers", "quoc doi dau slippers", "quoc doi dan slippery", "quoc doi dan grippers"
"locating bug code snippets" » "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: (((("quoc doi dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc doi dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc doi dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc doi dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.