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