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