Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung java java snippets" » "dung va java snippets"
"using dan hanh slippers" » "using data hanh slippers", "using a hanh slippers", "using raw hanh slippers", "using dang hanh slippers", "using dan khanh slippers", "using dan thanh slippers", "using dan hanh slippery", "using dan hanh 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 java java snippets") or ("using dan hanh slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("using dan hanh slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( using dan hanh slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("using dan hanh slippers"))) or ("locating bugs code snippets"))*.