Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"dong quoc khoi snippets" » "dang quoc khoi snippets", "dong duoc khoi snippets", "hoang quoc khoi snippets", "dong quoc hoi snippets", "dong buoc khoi snippets", "dong cuoc khoi snippets", "dong quoc khoi 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 ("dong quoc khoi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dong quoc khoi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dong quoc khoi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dong quoc khoi snippets"))) or ("locating bug code snippets"))*.