Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"bang trinh doc snippets" » "bang tinh doc snippets", "trang trinh doc snippets", "cong trinh doc snippets", "bang trinh do snippets", "bang trinh hoa snippets", "bang trinh co 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 ("bang trinh doc snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("bang trinh doc snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( bang trinh doc snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("bang trinh doc snippets"))) or ("locating bug code snippets"))*.