Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trinh he trinh slippers" » "trinh han trinh slippers", "trinh hoa trinh slippers", "trinh ky trinh slippers", "trinh he tinh slippers", "trinh thi trinh slippers", "trinh tho trinh slippers", "trinh he trinh slippery", "trinh he trinh 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: (((("dung java java snippets") or ("trinh he trinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("trinh he trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh he trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh he trinh slippers"))) or ("locating bug code snippets"))*.