Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"long toan chi snippets" » "bong toan chi snippets", "cong toan chi snippets", "long doan chi snippets", "long toan cao snippets", "long tai chi snippets", "long luan chi 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 ("long toan chi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("long toan chi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( long toan chi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("long toan chi snippets"))) or ("locating bug code snippets"))*.