Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dao cuong code snippets" » "dao cuong cong snippets", "dai cuong code snippets", "doan cuong code snippets", "cao cong code snippets"
"dong java java slippers" » "dong va java slippers", "dong java java slippery", "dong java java grippers"

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 ("dao cuong code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong java java slippers") OR ("dao cuong code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dong java java slippers ) or ( dao cuong code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong java java slippers") or ("dao cuong code snippets"))) or ("locating bugs code snippets"))*.