Perhaps you should try some spelling variations:
"thoi nguon java slippers" » "khoi nguon java slippers", "thoi nguyen java slippers", "tri nguon java slippers", "thoi ngu java slippers", "thoi nguon java slippery", "thoi nguon java grippers"
"dung java java snippets" » "dung va java snippets"
"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: (((("thoi nguon 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: (((("thoi nguon java slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thoi nguon java slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thoi nguon java slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.