Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong thi su slippers" » "luong thi su slippers", "dang thi su slippers", "duong thi cu slippers", "duong thi tu slippers", "duong chi su slippers", "duong thi su slippery", "duong thi su 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: (((("duong thi su slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong thi su slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong thi su slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong thi su slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.