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