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