Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc han danh slippers" » "duc van danh slippers", "duc phan dang slippers", "duc nhan dang slippers", "duc phan danh slippers", "duc hanh danh slippers", "duc hoan danh slippers", "duc han danh slippery", "duc han danh 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: (((("duc han danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc han danh slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc han danh slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc han danh slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.