Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"vat duoc cac snippets" » "dat duoc cac snippets", "luat duoc cac snippets", "xuat duoc cac snippets", "vat cuoc cach snippets", "vat duoc chat snippets", "vat duong cac snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code 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: (((("using java code snippets") or ("vat duoc cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("vat duoc cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( vat duoc cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("vat duoc cac snippets"))) or ("locating bug code snippets"))*.