Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"long than cho snippets" » "song than cho snippets", "luong thanh cho snippets", "dong thanh cho snippets", "long han cho snippets", "long toan cho snippets", "long chan cho snippets"
"locating bug core snippets" » "locating bug 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 ("long than cho snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("long than cho snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( long than cho snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("long than cho snippets"))) or ("locating bug core snippets"))*.