Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"yan zheng yii snippets" » "yan zhang yii snippets", "yang zhang yii snippets", "xuan zheng yii snippets", "yan cheng yi snippets", "yan zheng liu snippets", "yan zheng ni snippets"
"locating bug core snippets" » "locating bug code snippets"

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

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