Perhaps you should try some spelling variations:
"locating bugs code slippers" » "locating bug code slippers"
"using java code snippets" » "using data code snippets"
"cong danh het snippets" » "cuong danh het snippets", "cong dan het snippets", "cong thanh het snippets", "cong danh viet snippets", "cong danh hieu snippets", "cong danh bat 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 ("cong danh het snippets"))) or ("locating bugs code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("cong danh het snippets"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( cong danh het snippets ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("cong danh het snippets"))) or ("locating bugs code slippers"))*.