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