Perhaps you should try some spelling variations:
"dusing java java snippets" » "using java java snippets"
"thuc dan java slippers" » "thuc hanh java slippers", "hoc dan java slippers", "thuc vat java slippers", "thuc dan va slippers", "thuc dan java slippery", "thuc dan 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: (((("thuc dan 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: (((("thuc dan java slippers") OR ("dusing java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc dan java slippers ) or ( dusing java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc dan java slippers") or ("dusing java java snippets"))) or ("locating bug code snippets"))*.