Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"hoc dung cach snippets" » "hoc dung cac snippets", "hoc dung sach snippets", "hoc dong cach snippets", "hoc ung cach snippets", "hoc dan cach snippets", "hoc cong cach 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 ("hoc dung cach snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("hoc dung cach snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( hoc dung cach snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("hoc dung cach snippets"))) or ("locating bug code snippets"))*.