Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"anh thi java slippers" » "anh think java slippers", "anh tho java slippers", "dinh thi java slippers", "dang thi java slippers", "anh thi java slippery", "anh 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: (((("anh 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: (((("anh thi java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh thi java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh thi java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.