Perhaps you should try some spelling variations:
"vat thanh java slippers" » "vat thanh va slippers", "vat trinh java slippers", "vat think java slippers", "dat thanh java slippers", "gat thanh java slippers", "tat thanh java slippers", "vat thanh java slippery", "vat thanh java grippers"
"using java java snippets" » "using data 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: (((("vat thanh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vat thanh java slippers") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat thanh java slippers ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat thanh java slippers") or ("using java java snippets"))) or ("locating bug code snippets"))*.