Perhaps you should try some spelling variations:
"dusing java java snippets" » "using java java snippets"
"chun ngu java slippers" » "chuyen ngu java slippers", "chuon ngo java slippers", "han ngu java slippers", "chun ngu va slippers", "chun ngu java slippery", "chun ngu 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: (((("chun ngu java slippers") or ("dusing java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chun ngu java slippers") OR ("dusing java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chun ngu java slippers ) or ( dusing java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chun ngu java slippers") or ("dusing java java snippets"))) or ("locating bug code snippets"))*.