Perhaps you should try some spelling variations:
"dong java java slippers" » "dong va java slippers", "dong java java slippery", "dong java java grippers"
"trinh thi java snippets" » "trinh tai java snippets", "trinh thiet java snippets", "trinh tu java snippets", "trinh think java snippets"
"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 ("trinh thi 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 ("trinh thi java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong java java slippers ) or ( trinh thi java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong java java slippers") or ("trinh thi java snippets"))) or ("locating bug code snippets"))*.