Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung tri 01 slippers" » "dung tai 01 slippers", "dung tren 01 slippers", "nhung tri 01 slippers", "dung tra 01 slippers", "dung tri 2016 slippers", "dung tri 01 slippery", "dung tri 01 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: (((("dung tri 01 slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung tri 01 slippers") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung tri 01 slippers ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung tri 01 slippers") or ("python using java snippets"))) or ("locating bugs code snippets"))*.