Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"nhan tai den snippets" » "hang tai den snippets", "van tai den snippets", "toan tai den snippets", "nhan thai den snippets", "nhan tai yen snippets", "nhan tac den 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 ("nhan tai den snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("nhan tai den snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( nhan tai den snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("nhan tai den snippets"))) or ("locating bug code snippets"))*.