Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"chung hoc trac snippets" » "trung hoc trac snippets", "dung hoc trac snippets", "hung hoa trac snippets", "chung hoi trac snippets", "chung hoc truc snippets", "chung hoc thuc snippets", "chung hoc trac slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("chung hoc trac snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chung hoc trac snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung hoc trac snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung hoc trac snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.