Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"chua cau doi snippets" » "chua cu doi snippets", "chua dau doi snippets", "cua cau doi snippets", "chua cau hoi snippets", "chua cau do snippets", "chua cau noi 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 ("chua cau doi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("chua cau doi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( chua cau doi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("chua cau doi snippets"))) or ("locating bug code snippets"))*.