Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh chi ben slippers" » "danh cho ben slippers", "dinh chi ben slippers", "banh chi ben slippers", "danh chi bien slippers", "danh chi been slippers", "danh chi benh slippers", "danh chi ben slippery", "danh chi ben grippers"
"locating bug code snippets" » "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: (((("danh chi ben 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 chi ben slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh chi ben slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh chi ben slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.