Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"duc do danh slippers" » "duc do dinh slippers", "duc do sanh slippers", "duc dia danh slippers", "duc dao danh slippers", "duoc do danh slippers", "muc do danh slippers", "duc do danh slippery", "duc do danh grippers"

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: (((("duc do danh slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc do danh slippers") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( duc do danh slippers ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc do danh slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))*.