Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"ung tuyen thi snippets" » "dung tuyen thi snippets", "duong tuyen thi snippets", "cong tuyen thi snippets", "ung luyen thi snippets", "ung nguyen thi snippets", "ung truyen tho snippets", "ung tuyen thi slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

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 ("ung tuyen thi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("ung tuyen thi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( ung tuyen thi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("ung tuyen thi snippets"))) or ("locating bug code snippets"))*.