Perhaps you should try some spelling variations:
"vat thanh java snippets" » "vat thanh va snippets", "vat trinh java snippets", "vat think java snippets", "dat thanh java snippets", "gat thanh java snippets", "tat thanh java snippets", "vat thanh java slippers"
"using java java snippets" » "using data java snippets", "using java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 snippets") 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 snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vat thanh java snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vat thanh java snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.