Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"trinh thi lang slippers" » "trinh tai lang slippers", "trinh thiet lang slippers", "trinh tu lang slippers", "trinh thi nang slippers", "trinh thi lan slippers", "trinh thi hang slippers", "trinh thi lang slippery", "trinh thi lang 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 thi lang 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 thi lang slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( trinh thi lang slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("trinh thi lang slippers"))) or ("locating bug code snippets"))*.