Perhaps you should try some spelling variations:
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"
"chinh su trinh snippets" » "hinh su trinh snippets", "chinh phu trinh snippets", "chinh ta trinh snippets", "chinh su tinh snippets", "chinh qua trinh snippets", "chinh quy trinh snippets"
"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: (((("chinh su trinh snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chinh su trinh snippets") OR ("dung java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chinh su trinh snippets ) or ( dung java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chinh su trinh snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))*.