Perhaps you should try some spelling variations:
"dong java java slippers" » "dong va java slippers", "dong java java slippery", "dong java java grippers"
"cong suat code snippets" » "nang suat code snippets", "cong san code snippets", "cong cua code snippets", "cong suat core snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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 ("cong suat code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong java java slippers") OR ("cong suat code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong java java slippers ) or ( cong suat code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong java java slippers") or ("cong suat code snippets"))) or ("locating bug code snippets"))*.