Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"van quang van slippers" » "van quan van slippers", "tran quang van slippers", "van tuan van slippers", "van quang ban slippers", "van quang uan slippers", "van quang van slippery", "van quang van grippers"
"locating bug code snippets" » "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: (((("using java java snippets") or ("van quang van slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("van quang van slippers"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( van quang van slippers ))) or ( locating bug code snippets ))*.