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