Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"van hanh code slippers" » "van hanh de slippers", "van hanh cong slippers", "van hanh cad slippers", "van thanh code slippers", "ban hanh code slippers", "van anh code slippers"
"locating bug code snippets" » "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: (((("van hanh code slippers") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van hanh code slippers") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van hanh code slippers ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hanh code slippers") or ("data using java snippets"))) or ("locating bug code snippets"))*.